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Jaguar Repair/Questions Answered by Expert Howard M. Fitzcharles III
| Subject | Date Asked |
| Ignitio problem | 2/10/2012 |
| Q: Have a Jaguar E Type V12 1974 US version. I have it in Colombia. Is in good shape, runs well. A few ... A: Symptoms can sometimes lead you to a section of what is wrong but usually symptoms are useless in ... | |
| 1970 Jag E type 4.2 Liter | 2/9/2012 |
| Q: I recently rebuilt the Strombergs, installed new plugs and wires and It wont start for me. I have ... A: As a Jaguar mechanic in several dealerships I was faced with that problem as many as several times a ... | |
| My 1985 XJ6 | 2/8/2012 |
| Q: Howard, I'm moving on to the rear suspension this week and have new struts on the way and purchased ... A: Michael, the pinion bearing is not a sealed bearing. It is a tapered roller and you must NOT allow ... | |
| 1985 XJ6 Vanden Plas | 2/7/2012 |
| Q: I obtained this car over the summer. The ignition was broken but would start with a screw driver, no ... A: You have several problems with the electrics. First the fuel pump is activated by the fuel pump ... | |
| My 1985 XJ6 | 2/6/2012 |
| Q: Howard, I'm moving on to the rear suspension this week and have new struts on the way and purchased ... A: No, the rear hub bearings are not sealed type, they are tapered roller bearings with a large plug in ... | |
| jaguar xjs 3.6 | 2/4/2012 |
| Q: i have a problem with my jaguar xjs it is the early fuel injection system the one without the ... A: I am not familiar with the "S" with a 3.6 engine but all injection systems operate the same. They ... | |
| 1986 Jaguar XJS | 1/31/2012 |
| Q: 1984 Jaguar XJS wouldn't start after sitting for 3 years. After establishing spark (replaced ... A: Your symptoms do not tell me what is wrong and I have rarely ever been able to diagnose any problem ... | |
| 85 jaguar xj6 fuel seloned or shut off valve left side | 1/30/2012 |
| Q: mr howard. i bough a new fuel shot off valve left side for 85 jag.xj6 when i took it out the box i ... A: The left side fuel return valve is normally open and only closes when power is applied. The right ... | |
| My 1985 XJ6 - strange starting today | 1/29/2012 |
| Q: Howard, First, thanks again for doing this. I always appreciate your insight. My XJ6 restoration is ... A: Good to hear the project is progressing. First, are you sure the puff of smoke was from the intake? ... | |
| My 1985 XJ6 | 1/8/2012 |
| Q: Howard, So, I'm re-furbishing my front end components with new balljoints and shocks, thought I'd ... A: Yes, hold the bolts with a open end wrench over the sub frame and then remove the self locking nuts ... | |
| My 1985 XJ6 | 1/7/2012 |
| Q: Howard, So, I'm re-furbishing my front end components with new balljoints and shocks, thought I'd ... A: Sorry Michael, I don't know any tricks to make that part of the suspension easier to re-bush. You ... | |
| My 1985 XJ6 | 1/3/2012 |
| Q: Howard, I am replacing my front upper ball joints and shocks this week, did the lower ball joints ... A: I did a lot of series III jags and I never seen the same on two cars and most were not even the same ... | |
| 1985 XJ6 wind noise | 12/30/2011 |
| Q: Howard, My car has always been noisy inside when on the freeway - just wind noise turbulence. I ... A: If the door is out of alignment that would be a fix. Mainly what happens is the door seal (wind ... | |
| 1985 XJ6 wind noise | 12/29/2011 |
| Q: Howard, My car has always been noisy inside when on the freeway - just wind noise turbulence. I ... A: Most of the series III Jags I noted had wind noise due to the upper part of the doors to door seal. ... | |
| XK120 Front brake drum "frozen" to shoes | 12/28/2011 |
| Q: Every year or two, I visit a friend, who has a 1953 XK120 in storage. I have the car on jack stands ... A: You might try applying heat evenly around the outside of the drum first then try the lead hammer. ... | |
| 1984 XJ6 Vanden Plas leaky master cylinder | 12/26/2011 |
| Q: Howard, My brake master cylinder was leaking from the grommets under the reservoir, so I ... A: Steve, the reservoir should fit very tight in the grommets and the pins are there only to keep the ... | |
| 1984 XJ6 Vanden Plas leaky master cylinder | 12/25/2011 |
| Q: Howard, My brake master cylinder was leaking from the grommets under the reservoir, so I ... A: Before you replace the reservoir try loosening the cap to see if the vent in the cap is stopped up ... | |
| Replacing accessory belts on 1984 Vanden Plas | 12/7/2011 |
| Q: Howard, The alternator belt rolled off the crank pulley so I have to remove the fan/power ... A: Most of the time you need not loosen the mounting bolts to adjust the AC compressor because the ... | |
| 1984 xjs has no injector pulse | 12/6/2011 |
| Q: I have the same problem as you posted an answer to in 2009. (Question Hi i have been fortunate ... A: I don't remember getting any feed back from that problem. so I don't know what that guy found. I ... | |
| series three jaguar wont start | 12/4/2011 |
| Q: I got in one day , started it and put my seat belt on . Then it died. This was 10 months ago , it ... A: I learned when trying to diagnose a "no-run" condition to forget all symptoms and only look at ... | |
| Aux' Carb | 11/29/2011 |
| Q: I have an XK150S 3.8. Starts from cold and shuts down when temp' reached. alarming 'spit back' ... A: The Aux carb takes the place of a choke and supplies a rich mixture for cold starting. Usually a ... | |
| '87 VDP - Poor Compression Test - Part 2 | 11/28/2011 |
| Q: Howard: Thanks again for your help. I triple-checked compression readings and valve clearances, and ... A: #3 and #4 intake valves may be bent, thus the added clearance. It is difficult to pressurize the ... | |
| '87 VDP - Poor Compression Test | 11/27/2011 |
| Q: Howard: I have included our correspondence from 8/12/2008 below for background. Thanks again for ... A: Jags are noted for the studs sticking in the head, making it difficult to impossible to remove the ... | |
| XJ6 Vanden Plas hard cold starting | 11/22/2011 |
| Q: Howard, It takes many tries to start my 84 Vanden plas when the engine is cold, especially when ... A: The first test is to take a can of starting fluid and when you know it is going to be difficult to ... | |
| 1987 vapor canister | 11/14/2011 |
| Q: Greetings Howard. I am returning my 1987 XJ6 Vanden plas (102000 miles) to service after being in ... A: When the canister gets soaked in gasoline it is destroyed and must be replaced. However, that was ... | |
| IS THERE A FUSE FOR THE INJECTORS | 11/10/2011 |
| Q: CAN ONE SET TIMING ON A CAR BY HIS SELF?1987 JAG 4.2 LTR. ALSO WHERE IS THE CONTROL MODULE LOCATED. ... A: If you sprayed starter fluid into the intake and and it didn't try to start then you have no ... | |
| 85 jag.xj6 fuel return valvs | 10/30/2011 |
| Q: if so please let me kno// and what do i have to do to do so. my valvs work when i check them on ... A: To bypass the use of the return valves is easy. All you need to do is to ONLY use the left tank. ... | |
| throttle switch | 10/28/2011 |
| Q: what is the purpose of a throttle switch on 1985 jaguar xj6 A: The throttle position censer only has a full throttle switch inside and is there to tell the ECU to ... | |
| I THINK I DROP A SCREW | 10/25/2011 |
| Q: I WAS TRYING TO REMOVE THE SCREWS FROM THE PICKUP COIL WHEN TRYING TO REPLACE THEM I THINK THAT I ... A: The distributor rotor can get stuck on the shaft and over the years I have had to pry some off and ... | |
| XJ6 lubricants | 10/20/2011 |
| Q: Howard, You've been very helpful to me on the Triumph forum with my TR7, I just picked up an 1984 ... A: The engine oil should match the temperature of your area and the condition of the engine. If it were ... | |
| '85 Jaguar XJ6 transmission leak | 10/16/2011 |
| Q: Hey Howard I hope you're doing well. I was searching the internet and it seems you might have a ... A: There is a good chance that the leak is the front seal. The transmission is a BorgWarner 66 which is ... | |
| where is the fuse? | 10/6/2011 |
| Q: WHERE IS THE FUSE FOR THE FUEL PUMP LOCATED ON A 1987 JAG XJ6 SERIES 111 4.2LTR. REGARDS, RICHARD A: There is no fuel pump fuse. The fuel pump is powered directly by the fuel pump relay on the ... | |
| My 1985 XJ6 | 10/1/2011 |
| Q: Howard, The Jaguar has been running so well for a while, I have not had to seek your help, until ... A: Diagnosis of an electrical problem by symptoms is usually a waste of time except you do have one ... | |
| fuel problem | 9/16/2011 |
| Q: 2 litre I have a problem with the fuel tanks right hand side is a new tank when I fill the tanks ... A: I love them too even when I know most of their design flaws and short comings. I have two ser. III ... | |
| fuel problem | 9/16/2011 |
| Q: 2 litre I have a problem with the fuel tanks right hand side is a new tank when I fill the tanks ... A: I don't know the Daimler but I am guessing it is about the same as a XJ-6 Jag which I do know. The ... | |
| My 1984 XJ6 | 9/11/2011 |
| Q: Howard, I haven't had a question in a while as my XJ6 has been running so well, so well that I'm ... A: It may not mean anything to find puddled fuel in the intake manifold as the intake manifold on a ... | |
| 1984 XJ6 1984 | 9/1/2011 |
| Q: I am not driving my Jaguar because....I was told that the sound that seems to coming from the rear ... A: You need to put the car up on a lift and have someone run the car in gear and listen to try to pin ... | |
| HORN ROD | 8/24/2011 |
| Q: Howard hope you enjoyed your time off. When you get the chance would you look thru your STUFF and ... A: I have several junk series III cars and one should have the piece. I will look tomorrow. Howard ... | |
| The lovely XJ6 - Power Window fix | 8/7/2011 |
| Q: Howard, I would like to offer a tip here for others, and ask a question as well. I hope you do not ... A: As best as I can remember it was $40+ K. Most Jag dealers that were in business then should have ... | |
| The lovely XJ6 - Power Window fix | 8/6/2011 |
| Q: Howard, I would like to offer a tip here for others, and ask a question as well. I hope you do not ... A: good tech tip on the rear window regulator. On the gear oil into the differential, I use a small ... | |
| HORN ROD | 8/4/2011 |
| Q: 1985 Jaguar XJ-6. Horn rod is bowed and will not go into shaft centering bracket. Having difficult ... A: As I remember it is a tube, not a rod. Is that correct? It is more difficult to straighten a tube ... | |
| XJ6 Series 3 Horn sounds when I turn the steering wheel!!! | 8/3/2011 |
| Q: Howdy Howard. I just replaces my steering rack which ended up putting my steering wheel a full 180 ... A: Follow the second part of my answer and go a step at a time starting at the horn pad on the steering ... | |
| XJ6 Series 3 Horn sounds when I turn the steering wheel!!! | 8/3/2011 |
| Q: Howdy Howard. I just replaces my steering rack which ended up putting my steering wheel a full 180 ... A: First disconnect the battery but be sure you have the code to enter so you can get the radio to work ... | |
| My 1984 XJ6 | 8/3/2011 |
| Q: Howard, So, my floor pans are replaced, all the carpet is in, and I got my re-upholstered rear seat ... A: The only other thing is to leave the large main cable on the solenoid and remove the other end of ... | |
| My XJ6 | 7/31/2011 |
| Q: Howard, Hi again. I last asked about gluing down carpet after having my floor pans replaced, and I ... A: Anything is possible but condensation is unlikely a cause. You need to run tests on what stopped ... | |
| continuing - 1981 xj6 hot start | 7/27/2011 |
| Q: It told me I had to ask a new question. This is an update: A few days ago I could not make it go ... A: Only in a "NO start" condition can you test anything. So when it does not start ground the cold ... | |
| after it runs for awhile it won't take fuel | 7/25/2011 |
| Q: HOWARD. MY 4.2LTR JAG AFTER RUNN A LITTLE WHILE THEN I GIVE IT THE GAS IT JUST WILL NOT TAKE THE ... A: It could be the pump or a partially clogged fuel filter or a faulty pressure regulator. To test the ... | |
| Hot start problem on 1981 XJ6 | 7/24/2011 |
| Q: I just got a 1981 XJ6 Series III. She starts fine when she is cold, starts right up and keeps ... A: Pumping the throttle does absolutely nothing but holding the throttle wide open does open the ... | |
| Hot start problem on 1981 XJ6 | 7/24/2011 |
| Q: I just got a 1981 XJ6 Series III. She starts fine when she is cold, starts right up and keeps ... A: Try this, do your run to operating temp and shut it down and do your 5,10,& 15 minute wait and when ... | |
| after it runs for awhile it won't take fuel | 7/24/2011 |
| Q: HOWARD. MY 4.2LTR JAG AFTER RUNN A LITTLE WHILE THEN I GIVE IT THE GAS IT JUST WILL NOT TAKE THE ... A: Yes, it could be fuel related and there is a simple test for that. Just spray a little starting ... | |
| Hot start problem on 1981 XJ6 | 7/24/2011 |
| Q: I just got a 1981 XJ6 Series III. She starts fine when she is cold, starts right up and keeps ... A: All gasoline engines operate the same and when one dies it has lost one or more of only three items. ... | |
| 1985 Jaguar XJ6 won't start? | 7/22/2011 |
| Q: I'm working on a 1985 Jaguar XJ6, I have done everything I can think of to fix the problem, I have ... A: You did the normal test to determine that it is fuel related (the starter fluid test run) but you ... | |
| 87 XJS V12 quit running | 7/21/2011 |
| Q: My 87 XJS (Hess & Eisenhardt) convertible just died while driving it. Now when I let the car sit for ... A: Another quick test is when it won't start spray starting fluid into both intakes to try to start it ... | |
| 87 XJS V12 quit running | 7/20/2011 |
| Q: My 87 XJS (Hess & Eisenhardt) convertible just died while driving it. Now when I let the car sit for ... A: When any engine dies it has lost one or more of the only three items necessary to run. Compression, ... | |
| E Type FNC 4.2 /1969 | 7/17/2011 |
| Q: Last weekend I drove the car and suddenly the engine during the rit stopped I accelerated and the ... A: In the Jaguar dealerships we had good test equipment like a scope and CO/HC test equipment but most ... | |
| XJ6 III 87 | 7/16/2011 |
| Q: I want to test the ignition pick up coil with an analog multimeter. Is it possible? If so, what ... A: The test for the pick-up is with an ohm meter (digital or analog) Disconnect it and check across the ... | |
| Horn | 7/11/2011 |
| Q: 1985 Vanden Plas. Horn quit. Looked in series III manual and it talks about checking relay located ... A: The horn relay is a small round relay usually mounted on the inner right front fender well up close ... | |
| My XJ6 | 7/11/2011 |
| Q: Howard, Michael here from TN. My XJ6 went in for the new floor pans two weeks ago and I saw the ... A: I don't like glued down anything any more as I am accident prone and a spilled drink or a window ... | |
| 2008 Jaguar XJ Vaden Plas | 7/10/2011 |
| Q: I noticed this 23,823 mileage car online for a very reasonable price plus car fax report. Appears ... A: Sorry B, I have not kept up with Jaguar since the 1987 models. I suspect that the statement of ... | |
| 1980 Series 3 XJ6 - Steering wheel removal | 7/9/2011 |
| Q: I read all your other answers on the subject of starting but my problem is a little different. The ... A: Remove the center pad by removing the Phillips head screws in the back of the steering wheel then ... | |
| turn signals not working | 7/7/2011 |
| Q: WE TRIED A SET OF TURN SIGNALS OFF ANOTHER JAG WHITCH MEANS THOSE SIGNALS DID NOT WORK (WHICH IS ... A: Richard, many fuses are 15 amp I need the Fuse #. All of the fuses in the main (drivers side) and ... | |
| series 3 xj6 jaguar 1987 | 7/7/2011 |
| Q: how doi remove the switch from the steering column. It has 2 pins or ribbets holding it to the " . ... A: What do you mean by "we took the signal off another Jag" Took what off another Jag? And what relay ... | |
| SIII injectors not firing on start | 7/6/2011 |
| Q: my 84 jag was starting to run rough so after a compression ck i needed to rebuild the engine. the ... A: You have several issues that I don't understand. One is the fuel pump running. The US version turns ... | |
| series 3 xj6 jaguar 1987 | 7/5/2011 |
| Q: how doi remove the switch from the steering column. It has 2 pins or ribbets holding it to the " . ... A: All Experts is not my web site. I just volunteer to help people with problems on MG-Triumph and ... | |
| 1989 Jaguar XJS | 7/5/2011 |
| Q: We have a 1989 XJS that sat for one year. On trying to start it.. it started..ran for a minute or ... A: I don't have any experience with any Jaguar after the 1987 models. However, I suspect I see a ... | |
| series 3 xj6 jaguar 1987 | 7/5/2011 |
| Q: how doi remove the switch from the steering column. It has 2 pins or ribbets holding it to the " . ... A: The heads of the two bolts are sheared off on installation so you need to take a small sharp chisel ... | |
| 1980 Series 3 XJ6 hard to start fine when hot. | 7/3/2011 |
| Q: I read all your other answers on the subject of starting but my problem is a little different. The ... A: The 0-2 sensor is below the exhaust manifold in the pipe. (available from under the hood) The early ... | |
| 1980 Series 3 XJ6 hard to start fine when hot. | 7/2/2011 |
| Q: I read all your other answers on the subject of starting but my problem is a little different. The ... A: The need for a deep charge battery has the symptom of spinning fast enough but not fire at all. You ... | |
| location | 6/20/2011 |
| Q: howard, what city are you in? I have an e type that needs work... A: I am near Nashville, but I am retired and don't work on any cars for people any more as I have too ... | |
| 85 jag. speed transuducer | 6/20/2011 |
| Q: i have a 85 jag xj6 i have replace 3 transudicers in trans. is their something that would short them ... A: I don't know of any common problem of shorting out causing them to fail. The only common failure I ... | |
| Series 3 XJ6 headliner, etc... | 6/15/2011 |
| Q: Howard, I wasn't clear before. It isn't removing the sunroof again that bugs me, I've had it out ... A: A "click" when trying to start was never a symptom of needing a deep charge battery. The symptom was ... | |
| Series 3 XJ6 headliner, etc... | 6/14/2011 |
| Q: Howard, I wasn't clear before. It isn't removing the sunroof again that bugs me, I've had it out ... A: I found the headliner job a lot of work and found it difficult to get the head liner board out of ... | |
| Series 3 XJ6 headliner, etc... | 6/12/2011 |
| Q: Howard, Thanks for the headliner tip. I imagine that is to say the sunroof needs to come out again ... A: Yes, the sun roof has to come out but that is not a difficult job. But you should purchase a service ... | |
| Series 3 XJ6 headliner, etc... | 6/12/2011 |
| Q: Howard, Thanks for the headliner tip. I imagine that is to say the sunroof needs to come out again ... A: The deep charge battery was Jaguar's idea. I found that I could test to see if that was a reason for ... | |
| No fuel to pump | 6/8/2011 |
| Q: Catherine here again working on the 1984. After circut test you taught me before discovered it had ... A: If you have fuel available at the line going into the pump and it runs but does not take any fuel ... | |
| 87 jaguar 5.3 flooding out | 6/8/2011 |
| Q: I have a 87 jag v12 that keeps flooding out . I have been chasing my tail, can you please point me ... A: First thing to test is the fuel pressure. Connect a "T" in the fuel line close to the fuel rail and ... | |
| typical want to start but fails. | 6/7/2011 |
| Q: I'm at my wits end with this one. Hope you can shed a little light on this one. First this is what ... A: First stop tossing parts at it as you can easily run out of money before finding the problem that ... | |
| Series 3 XJ6 headliner | 6/5/2011 |
| Q: Howard, My XJ6 was supposed to be going in to the body shop Monday for new floor pans, but they have ... A: The headliner board is flimsy and easily broken. I have had some that were sagging just behind the ... | |
| 1971 E-Type V12 Engine Rebuild | 6/3/2011 |
| Q: Sir, I am considering a rebuild of my 1971 V12 engine. Can you provide me guidance and cost ranges ... A: Good decision, and there are some things you need to cover with the rebuilder. First are they ... | |
| 1971 E-Type V12 Engine Rebuild | 6/2/2011 |
| Q: Sir, I am considering a rebuild of my 1971 V12 engine. Can you provide me guidance and cost ranges ... A: When you say "Rebuild", you don't make it clear if you are going to do the rebuild, or you are ... | |
| 85 xj6 starts then shuts down. | 6/2/2011 |
| Q: Fitzcharles III, Thank you for being here. I have read many of your responses and was hoping not ... A: Glad to help. I see you suffer from the same disorder as I do. Too many jaguars. They are cats you ... | |
| Header tnak warning light | 6/1/2011 |
| Q: Just when I thought it was all sorted... I had ordered a new header tank for the engine bay as the ... A: I don't know exactly how the coolant sensor unit on the Aux fuse panel operates other then it must ... | |
| Series 3 door mirror | 5/30/2011 |
| Q: I need to remove the door mirrors on my 1983 XJ6 S3. 3 out of the 4 screws refuse to unscrew and the ... A: I have not had that particular problem on the mirror but have had it else where. I always drilled ... | |
| XJ6 SIII - Thank you and a follow-up on vacuum system | 5/30/2011 |
| Q: Good Day. I have been getting a 1984 SIII 4.2 XJ back on the road after it was in storage for 11 ... A: Your car sounds great. I am not sure our vacuum system is exactly the same and none of my books ever ... | |
| fuel lines/ part ID | 5/22/2011 |
| Q: 1984 XJ6. Now has 350 installed.I intend using the mechanical fuel pump on the block. There are 2 ... A: The car has two gas tanks and a fuel return system that returns most of the fuel to the tank that is ... | |
| XJ6 SIII Thermotime injector system | 5/20/2011 |
| Q: Good Day. I have been getting a 1984 SIII 4.2 XJ back on the road after it was in storage for 11 ... A: The Cold Start injector and the Thermo-time switch that grounds it, only operate while cranking. ... | |
| speed odemeter on 85 xj6 jag | 5/9/2011 |
| Q: i replace meter in dash - and speed transiducer in trans- it started to work few days stop again ... A: The speedometer and the pulse generator are not all there are in the system. The pulse generator is ... | |
| Replacing fuel tanks in xj6series3 | 5/4/2011 |
| Q: I live in Australia Brisbane where parts arevhard to come by especially fuel tanks, new they cost ... A: I never tried to make that switch but the bodies are designed about the same so there is a good ... | |
| 85 xj6 starts then shuts down. | 4/29/2011 |
| Q: Fitzcharles III, Thank you for being here. I have read many of your responses and was hoping not ... A: I found that it is best when doing several tests on a car, if you run into a failed test, you need ... | |
| 1986 Jaguar xj-6 | 4/29/2011 |
| Q: We can't seem to get a spark to start the car. We've replaced the ignition coil, and the ignition ... A: At 2000 RPM, is this in gear and on the road or just setting still and running free? Here is one ... | |
| fuel overflows from right tank | 4/24/2011 |
| Q: and both return valves at the rear wheels new fuel filter, and when on the passenger side right side ... A: First I need to tell you how the system operates and with that information you will see what is ... | |
| 85 xj6 starts then shuts down. | 4/18/2011 |
| Q: Fitzcharles III, Thank you for being here. I have read many of your responses and was hoping not ... A: I found that "symptoms" of a problem can sometimes lead you to an area but for the most part are ... | |
| Runs 2 minutes then dies | 4/14/2011 |
| Q: '85 California Jaguar VDP (XJ6) with just over 108K miles. This all started when the amplifier ... A: That is a puzzle because when you supplied propane and got no response, that would make me want to ... | |
| Dead Battery/Jaguar xke 1967 | 4/14/2011 |
| Q: The battery was working before it was transported 1,800 miles by truck.(It sat awhile, maybe 3 ... A: I would charge the battery and have it load tested. Then connect it up and leave on cable off and ... | |
| XJ6 series 3 RHD | 4/11/2011 |
| Q: I have a fuse No 13 on my wiring diagram which keeps blowing (Map, interior lamps, clock aerial ... A: Sorry Brian, all I have is the US version diagrams and they are wired differently. Our Map, interior ... | |
| 1997 XJR Vacuum in fuel tk | 4/7/2011 |
| Q: When the car is on the road I get quite a lot of vacuum in the fuel tank and whilst the car has been ... A: I have no experience nor info on any Jaguar after the 1987 models. However, no car has vacuum in the ... | |
| 1986 Jaguar xj-6 | 3/23/2011 |
| Q: We can't seem to get a spark to start the car. We've replaced the ignition coil, and the ignition ... A: A common failed item in the ignition system is the leads going to the pick-up so when testing the ... | |
| series 2 xjc auto no drive | 3/18/2011 |
| Q: Have purchased a 1976 4.2 auto that hasnt been driven in about 15 years.Car runs pretty well but ... A: Not much can be done outside the transmission other then check the fluid level. There is a port for ... | |
| XJS-C 1984 3.6 Starting problem | 3/17/2011 |
| Q: Howard I have a 1994 XJS-C 3.6 which has been garaged for at least a year, perhaps longer. At the ... A: If you have the AB14, it is the amplifier that takes the signal from the pick-up in the distributor ... | |
| Jaguar XJ6 S3 4.2 auto Charging Problems | 3/17/2011 |
| Q: I have a 1982 XJ6 S3 4.2 auto which has a charging problem that nobody seems to be able to solve for ... A: Paul, I don't know anything about that battery and I wouldn't buy a battery over the Net. The ... | |
| XJS-C 1984 3.6 Starting problem | 3/17/2011 |
| Q: Howard I have a 1994 XJS-C 3.6 which has been garaged for at least a year, perhaps longer. At the ... A: Sorry, I have no experience nor info on that engine combination in that car. (always wanted one ... | |
| Jaguar XJ6 S3 4.2 auto Charging Problems | 3/16/2011 |
| Q: I have a 1982 XJ6 S3 4.2 auto which has a charging problem that nobody seems to be able to solve for ... A: First the alternator can not bring up a dead battery except on a very long driving time because a ... | |
| 1984 XJ6 heat/cool | 3/16/2011 |
| Q: Howard, The control drum in my HVAC system gears jammed and were chewed up, so back in the colder ... A: You are brave setting the drum to get it cool or warm and not a bad idea but a lot of work. There ... | |
| Jaguar XJ6 S3 4.2 auto Charging Problems | 3/9/2011 |
| Q: I have a 1982 XJ6 S3 4.2 auto which has a charging problem that nobody seems to be able to solve for ... A: You have a puzzle. The 14.1 v at the battery after starting is a 100% clear indicator that the ... | |
| fuel return | 3/8/2011 |
| Q: ANSWER: Hi James, When you select the right tank you should have power to BOTH return valves and ... A: James, I just told you how the system is suppose to work. Write it down or copy it so you can check ... | |
| fuel return | 3/8/2011 |
| Q: A: When you select the right tank you should have power to BOTH return valves and when you select the ... | |
| 1984 XJ6 two transmission questions | 3/5/2011 |
| Q: Howard, I topped off the transmission fluid according to manual procedure last night, but it seems ... A: I would drain a little out if it is over full when checking it in park on level ground warm. Just a ... | |
| Jag won't run when warmed up | 2/24/2011 |
| Q: I am hoping that you can be of some help even though your expertise are not for my type of car. I ... A: When a car runs ok cold but not warmed up you need to first confirm that it is a lack of fuel ... | |
| 1982 Jaguar xj6 | 2/22/2011 |
| Q: I have a 1982 Jaguar xj6 that I recently purchased, the car will not start, it will crank over, but ... A: You need to look toward the ignition unit mounted on the front of the intake manifold and check the ... | |
| Hag X-Type 2001 Gearbox auto trasnmission problem | 2/20/2011 |
| Q: My 2001 X type 3.0 SE has done 115,000 great car until now! gearbox won't go past 3rd and I have to ... A: My Jaguar experience was from 1960 up to the 1987 models so I have no experience on the "X" Type ... | |
| 1984 XJ6 fuel issue | 2/19/2011 |
| Q: Howard, I just performed the test you suggested. I remember this one now from before. With the key ... A: Either the pump is failing after running a short time or your filter is partially stopped up thus ... | |
| 1984 XJ6 rear brakes | 2/18/2011 |
| Q: Howard, Point well taken. I should slow down a bit, I was just anxious to put things back together. ... A: OK, all that is understandable but you have a problem that you must correct before bothering with ... | |
| 1984 XJ6 rear brakes | 2/17/2011 |
| Q: Howard, Point well taken. I should slow down a bit, I was just anxious to put things back together. ... A: Michael, you are jumping around at several issues. Why are you starting and running and stopping and ... | |
| 1984 XJ6 rear brakes | 2/16/2011 |
| Q: Howard, Point well taken. I should slow down a bit, I was just anxious to put things back together. ... A: Sounds great on the brake line. As long as the return fuel is returning to the same tank that the ... | |
| 1984 XJ6 rear brakes | 2/15/2011 |
| Q: Howard, I was going to re-install my rear calipers tonight, when I thought it prudent to loosen the ... A: It usually depends on the location of an air bubble. In a shop we had to correct the broken bleeder ... | |
| 1984 XJ6 rear brakes | 2/13/2011 |
| Q: Howard, I have been rebuilding my rear calipers and parking brakes at leisure as I awaited my fuel ... A: Yes. Fuel pressure test is first. (about 32 PSI with vacuum and about 42 with vacuum removed from ... | |
| 85 jaguar xjs v-12 | 2/12/2011 |
| Q: ok you recommended putting a condenser on my fuel pump feed wire to stop it from breaking the relays ... A: Melanie, I said if it is burning the contact points to try a condenser, you need to open up a failed ... | |
| 85 xjs v12 | 2/9/2011 |
| Q: I buy new fuel pump relays and it keeps blowing them. if i take the cap off the relays and hold the ... A: If you are going through a lot of relays I would remove the cover to examine the relay to see what ... | |
| 1986 jaguar xjs v12 | 2/8/2011 |
| Q: could there be a problem with that, because this is my second cluster that I have bought. Thanks TJ ... A: First turn on the lights and look at the switch illumination lights, Cigar liter light and gear ... | |
| 1984 XJ6 fuel tanks | 2/5/2011 |
| Q: Howard, I picked up my cleaned, repaired, and re-lined fuel tanks today only to notice by flashlight ... A: I do know that if the return fuel were to enter the bottom of a full tank it would raise system ... | |
| 1984 XJ6 fuel tanks | 2/5/2011 |
| Q: Howard, I picked up my cleaned, repaired, and re-lined fuel tanks today only to notice by flashlight ... A: Sorry Michael, I am not any help an that one because I never had that pipe out. Fuel does return ... | |
| 1985 xjs 3.6 | 2/3/2011 |
| Q: Howard, before we start I wanted to thank you for taking the time to look at my question. I have a ... A: I have never worked on the 3.6 but will try to help. You already know that the problem is fuel so ... | |
| 1984 XJ6 rear brakes | 2/1/2011 |
| Q: Howard, So my XJ6 is up on stands awaiting the reworked fuel tanks, and I thought this a great time ... A: Murphy and his law always follow me around and if there is a bolt that is drilled for tie wire and I ... | |
| 85 jaguar xjs v-12 | 1/29/2011 |
| Q: my car starts and then dies. somedays it runs fine. but most it starts then dies A: The fact that it starts and then dies is not enough information to diagnose what is wrong. All ... | |
| 1984 XJ6 fuel tanks | 1/27/2011 |
| Q: Howard, Thanks for your previous answer. I have now removed both fuel tanks and will be carrying ... A: It's been a while since to removed and replaced a tank and the only thing I remember being ... | |
| 1984 XJ6 fuel tanks | 1/25/2011 |
| Q: Howard, Hi again, My Jaguar recently developed the problem of pulling fuel from one tank, dumping to ... A: If you read how the system works you can see that it is possible to transfer fuel when you get a ... | |
| Jaguar XJ6 Series 3 build date Oct 82 | 1/24/2011 |
| Q: I have recently (6 months ago) rebuilt the engine and all its components have been replaced of ... A: My procedure if you had come in to my shop would be. Does it show any high temp on the gauge? ... | |
| purge system | 1/20/2011 |
| Q: TANKS FOR TAKING QUESTIONS 1983 JAGUAR XJS 35,000 MILES HAS A RECALL FOR PURGE SYSTEM. I CHECKED THE ... A: I don't think anyone in the aftermarket got involved it that system. If it is no longer available ... | |
| 1984 xjs jaguar | 1/20/2011 |
| Q: just had a engine replaced (12 cyl) runs smooth as a top. was standing by the tailpipe and black ... A: Black smoke is an indication of a rich fuel mixture. A light puff of black smoke on a quick throttle ... | |
| is my 1986 XJ6 worth saving?? | 1/18/2011 |
| Q: in 2006 I bought 1986 XJ6 and have been slowly fixing it up. this car has been tough even drove it ... A: It depends on if you want the car and how bad. If you are doing it as an investment, you are ... | |
| '88 VDP fail Smog test - High Noxide | 1/17/2011 |
| Q: I have an 88 VDP that I just bought from my father in AZ. It only has 57K miles on it and he has ... A: I don't have any experience nor info on the 40 series jag (88 model)but just looking at your ... | |
| xjs v12 | 1/14/2011 |
| Q: i have here a xjs have spark. have no fuel been injected but have fuel pressure. A: The next step is to confirm that the ignition pulse signal is reaching the ECU and that the ECU is ... | |
| Jaguar 1985 won't start | 12/24/2010 |
| Q: It will only start when hot, It will not start cold A: First thing to do is try spraying starter fluid into the intake tube. If that makes it start cold ... | |
| 1986 jaguar xj6 gas tanks | 12/20/2010 |
| Q: my passenger side tank overflows when the car is running and the gas guage on driver side reads ... A: The ser III Jag has designed the fuel system so that the left tank can be used if any of the ... | |
| 1985 XJ6 Cruise Control | 12/10/2010 |
| Q: Need information on where to find info. Or repair manual for cruise control. Have series III repair ... A: As I said, I do all of my testing with a Logic Probe (LED) as it will not interrupt the signal. I ... | |
| 1985 XJ6 Cruise Control | 12/9/2010 |
| Q: Need information on where to find info. Or repair manual for cruise control. Have series III repair ... A: Sorry Dan, my bad. there are just too many keys on these keyboards for us old folk. That is my web ... | |
| 1985 XJ6 Cruise Control | 12/8/2010 |
| Q: Need information on where to find info. Or repair manual for cruise control. Have series III repair ... A: Dan, I have worked for several Jag dealers over the years and I have never seen a ser III Jag that ... | |
| 1985 XJ6 Cruise Control | 12/8/2010 |
| Q: Need information on where to find info. Or repair manual for cruise control. Have series III repair ... A: You were correct that the factory manual left that out. I don't have a good test of the Cruise ECU ... | |
| XJ6C | 12/7/2010 |
| Q: Just bought a 1975 XJ6C. My fifth XJ6 first series II. Love the look of the coupe and always wanted ... A: I only worked on a few coupes and I don't remember seeing any sun roofs in them. That don't mean ... | |
| 1984 XJ6 heat | 12/1/2010 |
| Q: Howard, Please understand I was not offended by you not wanting to go through the whole system, and ... A: Most of these parts can not be found in the aftermarket so buying them from Jaguar can run higher ... | |
| XK-150 power steering possible? | 11/30/2010 |
| Q: I have been eyeing a BRG 150 fhc for sale. Have only driven 2 of those, a long time ago, but my ... A: I don't know of any but there are many power steering racks that could be installed by a shop that ... | |
| 1984 XJ6 heat | 11/30/2010 |
| Q: Howard, I continue to work through what I can with my heat system and found tonight that I was not ... A: Sorry Michael, that you are offended that I don't want to spend the time going over this Heat/AC ... | |
| 1984 XJ6 heat | 11/28/2010 |
| Q: Howard, I continue to work through what I can with my heat system and found tonight that I was not ... A: The reason Haynes does not cover the climate control system is because it would require an ... | |
| Engine Seized? | 11/21/2010 |
| Q: I just bought a 1993 XJ6 Vanden Plas. I just put a brand new starter in it and when I crank it over, ... A: I have no experience nor info on any Jaguar after the 1987 models. However, an engine is an engine ... | |
| Climate control on a series II XJ6 | 11/18/2010 |
| Q: I have just purchased a series II XK6 as a restoration project. The climate control seems to have a ... A: Sorry Mark, the climate control system on the Series III Jags is complicated and too much for me to ... | |
| sliding roof | 11/18/2010 |
| Q: I have a 1984 xj6 vanden plas I replaced the head liner with the foam backed headliner material and ... A: The sun roof liner was not foam backed originally. It was the same material but without the foam on ... | |
| replacing fuel filter on 1985 jaguar xj6 | 11/18/2010 |
| Q: I replaced the fuel filter on my 1985 Jaguar xj6 my question is does the fuel out face up or down ... A: Up or down is useless information because someone may have changed the hoses at some time in the ... | |
| fuel tank 85 xj6 | 11/12/2010 |
| Q: mr howafr hope u/ar doing well 85 xj6 runs fine on right gas tank when i switgh to left after a ... A: Jammes, I can't make out what you are saying. If you are talking about vent valves, they must point ... | |
| brake lights | 11/11/2010 |
| Q: I have a 1986 jaguar xj-6 I have no power to the brake light switch maybe a relay checked all fuses ... A: The Switch is powered by fuse #11 (35 amp) in the main fuse panel. Checking for a blown fuse is not ... | |
| fuel tank 85 xj6 | 11/9/2010 |
| Q: mr howafr hope u/ar doing well 85 xj6 runs fine on right gas tank when i switgh to left after a ... A: You said you changed some parts but did you do any testing? Is there a free flow of fuel from the ... | |
| injectors are firing! | 11/9/2010 |
| Q: Howard, I'm sure your clear on all the things I've checked in attempts to get the injectors to ... A: Great, all you need to do then is to correct the cold start valve. (you either have a faulty Noid ... | |
| 1985 jaguar xj6 no fuel from injectors | 11/6/2010 |
| Q: Howard, before we start I wanted to say thanks for taking the time lend your advise and expertise. ... A: The only things I see is that the #1 pin should be tested with the engine spinning to see that it is ... | |
| window lift motor relay | 11/4/2010 |
| Q: I just recently bought my 1985 jaguar xj6.I have changed out fuel tanks,pump,fuel ... A: The relay in in the upper most right end of the Aux fuse panel and the two thermal breakers are on ... | |
| Failed Smog Nox test | 11/3/2010 |
| Q: 1985 Jaguar XJ6 Vanden Plas 4.2 litre failed smog for very high Nox reading. Max 742 @ 1525 rpm, my ... A: NOX is the product of burning of the Nitrogen in the air in the combustion chamber when the ... | |
| AEU for XJ6C | 10/31/2010 |
| Q: I have replaced old, sick automatic enrichment unit(AEU) with brand new manual one on my XJ6C 76th ... A: I have no experience with any of the Daimlers but most of their equipment is like the early Jag ... | |
| 1984 XJ6 heat | 10/30/2010 |
| Q: Howard, So it seems I have my heat system working reasonably well, and I sorted out the electrical ... A: It is true that 300 mi is a short time to ware a pad down. So it either broke (least likely) or ... | |
| XKR Brakes | 10/28/2010 |
| Q: My 2006 XKR now has 29,000 miles on the original brakes. I don't know if I need new brakes or not, ... A: The Jaguar dealer is just up the road from you on east 8th street. And there are two independent ... | |
| Lucas, the prince of darkness | 10/24/2010 |
| Q: Howard, I have been writing this week regarding refurbishing my HVAC blower motors. They are ... A: Of all the electrical problems I found over the years working on Lucas cars the most common were ... | |
| Lucas, the prince of darkness | 10/24/2010 |
| Q: Howard, I have been writing this week regarding refurbishing my HVAC blower motors. They are ... A: I found when working in dealerships that electrical problem symptoms would sometimes lead you to a ... | |
| 1984 XJ6 heat | 10/21/2010 |
| Q: Howard, Ok, first the positive news. I removed both blower motors tonight and after a good dousing ... A: As I out-lined before the electric motor powered rotating drum has several vacuum valves that ... | |
| fuel shut off valve | 10/19/2010 |
| Q: mr howard my tamp ctl// stop working on 85 xj6 no air just heat i got 2 more temp switches they ... A: James, you will have to explain what shut off valve you are talking about. If you mean the heater ... | |
| 1984 XJ6 heat | 10/19/2010 |
| Q: Howard, As for my last question, a brass plug with a hex head worked perfectly for holding down the ... A: If the car came to me in the shop with that problem. The first thing I have to do is get my Heat/AC ... | |
| 1984 XJ6 heat | 10/18/2010 |
| Q: Howard, As for my last question, a brass plug with a hex head worked perfectly for holding down the ... A: The heat/AC system is a complex system and you need the Series III Heat/AC Climate Control manual ... | |
| fuel changeover switch | 10/16/2010 |
| Q: Trying to replace fuel changeover switch in late Series 3 XJ6. How do you physically remove the ... A: It has been a while since I pulled one but that is not how I remember it. I think you have to remove ... | |
| 1984 XJ6 fluke | 10/16/2010 |
| Q: Howard, You have helped me quite a bit with my XJ6 and it is now a weekend cruiser. I check all ... A: The second plug is larger than the front one and is used to hold down the heat shield. They are not ... | |
| 1970 E Type 4.2 litre convertible | 10/15/2010 |
| Q: You answered a question before on another E type which was great. I am now looking at my E type. I ... A: As I tell everyone, diagnosis by symptoms is mostly a waste of time. The oil pump is powered by the ... | |
| 1970 E Type 4.2 litre convertible | 10/15/2010 |
| Q: You answered a question before on another E type which was great. I am now looking at my E type. I ... A: I have rebuilt E-type gearboxes (early and later) but have never tried to change the rear seal on ... | |
| '84 xj6 leaking!!! | 10/15/2010 |
| Q: I have a leak near the front passenger tire on my '84 xj6. Also, the brake pedal gives little ... A: You first need to check the fluid level in the brake reservoir under the hood just in front of the ... | |
| 1973 XKE Roadster v12 engine restoration | 10/14/2010 |
| Q: I am e-mailing you with a question. I will be objective with this question but really need your ... A: Your picture looks like a complete "frame-up" restoration. So it boils down to what kind of deal you ... | |
| jaguar xj6 1985 series 3 | 10/14/2010 |
| Q: when i bought the car it had a very light misfire,then the coil went bad so i change it.the spark ... A: Andre, at this point you need to locate a shop that has a scope and CO equipment. They can run all ... | |
| 1973 XKE Roadster v12 engine restoration | 10/14/2010 |
| Q: I am e-mailing you with a question. I will be objective with this question but really need your ... A: Sorry to hear of your plight. A lot depends on what you and the shop are calling a "100 point" ... | |
| jaguar xj6 1985 series 3 | 10/12/2010 |
| Q: when i bought the car it had a very light misfire,then the coil went bad so i change it.the spark ... A: It is cool to put a lot of new stuff on a car you just bought so as to make it more reliable but you ... | |
| 1987 XJS speedometer | 10/12/2010 |
| Q: The speedometer on my 87 XJS 12 stopped working. Could it be a sensor or a cable behind the dash? ... A: The speedometer, trip computer, service interval counter and the cruise control are powered by a ... | |
| 1984 XJ6 heat | 10/11/2010 |
| Q: Howard, I seem to have both blowers now working, but I am concerned that I will never really have ... A: This would have been normal if you had run the engine recently. When you turn the key "On" the gauge ... | |
| 1984 XJ6 heat | 10/10/2010 |
| Q: Howard, I seem to have both blowers now working, but I am concerned that I will never really have ... A: First start the engine cold and feel the upper radiator hose and let it run a while and keep feeling ... | |
| Oil consumption 63 xke | 10/7/2010 |
| Q: I have a 1963 xke with the 3.8 engine. I rebuilt the motor doing a rebore and new pistons. I've put ... A: The test for a ring problem is a "Dry" Compression test followed by a "Wet" Compression test not a ... | |
| 1975 XJ6C Dash board and brake lights | 10/7/2010 |
| Q: Coupe has Chevy conversion. 5.7 liter & 700r4 tranny. In the past week, the dash board lights as ... A: Sorry Richard, I don't have a 75 XJ-6 diagram but Jag usually runs the power to the instrument ... | |
| 1984 XJ6 heat | 10/7/2010 |
| Q: Howard, The Tennessee summer heat has ended abruptly, which causes me to begin pondering the ... A: I found that it is a waste of time trying to guess or diagnose by symptoms. The ONLY way to correct ... | |
| air flow meter | 10/4/2010 |
| Q: 85 xj6 blower moter workf fine on all speeds dont work on low check resister in hehter box behine ... A: There is a adjustment screw on the airflow meter but it is only for idle adjustment. Adjusting the ... | |
| 1984 XJ6 Heater Core | 9/26/2010 |
| Q: Howard, 3 people have refused to do the heater core replacement on my car. Can you tell me what I am ... A: Get the new heater core and note that the reason you can't remove it from the left side is because ... | |
| 1984 Jaguar jx6 idles too high | 9/26/2010 |
| Q: Howard, Thanks for the info you are a great resource. I noticed my xj6 idles at about 1300RPM. There ... A: That is most likely more than one issue. The idle speed after warm-up is controlled by the idle ... | |
| low injector fire on noid light | 9/26/2010 |
| Q: I have a 1986 jag xj6 it has 40 psi fuel pressure is getting fire to the plugs but real or very ... A: First test is to charge the battery up fully and even though that may spin the engine quit fast add ... | |
| Smog | 9/22/2010 |
| Q: i just recently bought a 85 jaguar xj6. I have changed the O2 sensor, spark plugs, cables, ... A: Yes, CAT is Catalytic converter. and your limits in NOX confirms my suspicions. Before you take the ... | |
| 73 XKE V12 alternator | 9/22/2010 |
| Q: How difficult is it to replace the altenator and regulator on a 73 XKE V12 automatic. A: It is not a difficult job but you should purchase a service manual before you start. As it will tell ... | |
| Smog | 9/21/2010 |
| Q: i just recently bought a 85 jaguar xj6. I have changed the O2 sensor, spark plugs, cables, ... A: Your test sheet should have given you the limits on each. I live in a state where they only require ... | |
| 1982 XJS H.E. | 9/21/2010 |
| Q: just bought an 82 xjs fuel injected. The car kicks over with no issues but after idling for 30 secs ... A: Plugs can do that so don't leave stones unturned just because a plug problem normally causes a miss ... | |
| 1982 XJS | 9/21/2010 |
| Q: I am seriously considering the purchase of an XJS from the original owner, with only 62,000 original ... A: I am not a automatic specialist but if that is the only problem you may have either a band ... | |
| 1982 XJS H.E. | 9/21/2010 |
| Q: just bought an 82 xjs fuel injected. The car kicks over with no issues but after idling for 30 secs ... A: Your symptom does not indicate what is wrong. So you need to start testing. I would first try to rev ... | |
| XJ6 fuel injectors not firing follow-up | 9/16/2010 |
| Q: Next step is to confirm all powers "IN". There are 4 relays lined up on the firewall under the hood. ... A: Jaguar dealers use to have a tester but I don't know if they would keep one as they look at the ... | |
| XJ6 fuel injectors not firing follow-up | 9/14/2010 |
| Q: Next step is to confirm all powers "IN". There are 4 relays lined up on the firewall under the hood. ... A: Peter, how can you have a bad resistor pack when you have power to the injectors? Look at the ... | |
| '87 XJ6 fuel injectors not firing | 9/14/2010 |
| Q: Howard - I'm still trying to figure out why the injectors are not firing on my XJ6. With the key in ... A: Next step is to confirm all powers "IN". There are 4 relays lined up on the firewall under the hood. ... | |
| Engine dies after driving | 9/13/2010 |
| Q: Howard, I have a 1985 XJ6 and it starts and runs well but has an issue when I have driven about 15 ... A: Even though there are a thousand things that can make a car quit after driving, there are methods to ... | |
| Oil consumption 63 xke | 9/13/2010 |
| Q: I have a 1963 xke with the 3.8 engine. I rebuilt the motor doing a rebore and new pistons. I've put ... A: It sounds like everything is as it should be. I would not expect that to burn oil unless that gauze ... | |
| '87 XJ6 fuel injectors not firing | 9/13/2010 |
| Q: Howard - I'm still trying to figure out why the injectors are not firing on my XJ6. With the key in ... A: Peter, You should have power on the Brown w/slate trace wire in the Ignition position. To confirm ... | |
| '87 XJ6 fuel injectors not firing | 9/13/2010 |
| Q: Howard - I'm still trying to figure out why the injectors are not firing on my XJ6. With the key in ... A: You said "my wiring diagram". Did you download a copy of my diagram? If so why are you putting 12v ... | |
| Oil consumption 63 xke | 9/13/2010 |
| Q: I have a 1963 xke with the 3.8 engine. I rebuilt the motor doing a rebore and new pistons. I've put ... A: Usually valve stem seal problems are noted by lots of blue smoke on first start up but less as you ... | |
| 69 etype starter relay location | 9/10/2010 |
| Q: I am working on a 1969 Jaguar etype coupe. I am looking for the location of the starter relay. I ... A: Sorry Jay, Even though I worked on all the E-types through the span of the E-type I don't remember ... | |
| jaguar xjc 1975 4.2cc | 9/8/2010 |
| Q: what is the maximum you can resurface the cylinder head i have some corrosion around number 6 ... A: I have worked in several Jaguar dealerships since 1960 and have had many Jag heads surfaced but ... | |
| Heater valve | 9/8/2010 |
| Q: 83 XJ6 has gurgling sound in the heater when revs are increased slightly, then goes away. Happens ... A: If the cooling system is not full it could be air in the system but if it is full it is not likely ... | |
| '84 XJ6 rear bearings | 9/5/2010 |
| Q: Howard, You have helped me get to a point where my XJ6 is now a pleasure to drive, but I have ... A: There is a plug in the alloy hub but that is to gain access to the grease fitting on the outer "U" ... | |
| '84 XJ6 rear bearings | 9/5/2010 |
| Q: Howard, You have helped me get to a point where my XJ6 is now a pleasure to drive, but I have ... A: You should not smell grease unless it is getting hot. After driving on the highway stop and feel ... | |
| Wiper motor FULL of water. | 9/5/2010 |
| Q: I had my wiper motor out last week from my Daimler Sovereign 2.8 (1970) and i poured half a pint of ... A: My guess would be to look on the motor for a number as it is bound to be Lucas and call that Lucas ... | |
| window power | 9/4/2010 |
| Q: No power to any. I have tried to but cannot locate or identify relay if thats what I need if you ... A: The relay is a standard four pin 12v relay and can be bench tested. Pin number 85 and 86 are the ... | |
| jaguar xj12 1983 not starting . | 9/4/2010 |
| Q: Oxygen sensor warning light still stays on even after resetting the Service Interval Counter in the ... A: The O-2 sensor light is a mileage counter and the reset should have put the light out no matter what ... | |
| S3 Fuel pressure | 9/3/2010 |
| Q: I have checked the fuel pressure from the fuel pump on my 1974 S3. I shows 1.5 to 2.5 psi. Is that ... A: Your car if it is a 1974 is not a series III but a series II (Carburetors) and it can use 1.5 to 2.5 ... | |
| window power | 9/2/2010 |
| Q: No power to any. I have tried to but cannot locate or identify relay if thats what I need if you ... A: You didn't accidently turn the master switch off on the console? If not the relay (round) is up high ... | |
| oxygen sensor continued | 9/2/2010 |
| Q: This is Eddie again asking about the NOx levels.. The HC reads 92 and the CO reads 0.25 A: Your CO and HC are ok as HC limit is about 220 and the CO limit is 1.2 so my guess is you have a ... | |
| oxygen sensor | 9/2/2010 |
| Q: my name is eddie Im a new owner of a 1985 jahuar xj6 and am trying to get familiar with the car, ... A: NOX is caused by an over heating of the combustion chamber. Several things can cause this. Many ... | |
| Rear main oil seal xke 1963, 3.8 litre | 9/1/2010 |
| Q: Can you advise on whether I can change the rear main oil seal without removing engine/gearbox and ... A: I have seen mechanics try to do it in the car but it was not very successful. The main reason is ... | |
| Oil Leak | 9/1/2010 |
| Q: I have a 1984 XJS with 57k miles and I have an oil leak that I'm told will cost me around $1,000 to ... A: A rear main seal leak can be that much or more depending on what is wrong. If you have excess ... | |
| oxygen sensor | 8/29/2010 |
| Q: my name is eddie Im a new owner of a 1985 jahuar xj6 and am trying to get familiar with the car, ... A: That is a mileage light warning you it is time to service the 0-2 sensor and you need to go into the ... | |
| '84 XJ6 ball joints | 8/29/2010 |
| Q: Howard, Ok, not exactly the ball joints, but while changing my lower front ball joints, I managed to ... A: Yes, but look closely for any leaks and watch fluid level. One more thing to check. Jack the front ... | |
| '84 XJ6 ball joints | 8/29/2010 |
| Q: Howard, Ok, not exactly the ball joints, but while changing my lower front ball joints, I managed to ... A: You could have had some air still in the system and as you used the car the air migrated back into ... | |
| Rough Idle | 8/28/2010 |
| Q: Mr. Charles, I have a 1985 xj6 which has a rough idle. From a could start it seems to run fairly ... A: A rough idle can be caused by many things and mixture is just one of them. Not counting that the ... | |
| header tank | 8/28/2010 |
| Q: I own a 1967 e type 4.2 jag...and my heater tank has rusted out..how could I eliminate the heater ... A: As I remember the header tank had the radiator cap in it in 67, so you still need some kind of ... | |
| XJ6 SIII flasher warning lights | 8/25/2010 |
| Q: All the flashers and hazard warning lights work as they should apart from the two warning lights on ... A: Disconnect the two light green and brown wires from terminal "C" on the flasher unit and use a test ... | |
| 1985 xjs heater core | 8/23/2010 |
| Q: how do i remove the heater core from 1985 xjs. A: Sorry Jerry, I have never put one in an "S" but have in the 85 XJ-6 and I am guessing it may be the ... | |
| my 83 jaguar xj6 is sputtering when you step on the gas petal. | 8/22/2010 |
| Q: 1983 jaguar xj6,I changed the fuel pump and the fuel filter.the filter was clogged it had orange ... A: Your symptom narrows the problem to about a thousand things. You do need to drain the tanks and ... | |
| Rear window seal replacement | 8/22/2010 |
| Q: What is the procedure for replacing the inner and outer seal on the rear window of a 1985 jaguar xj6 A: I helped an a Jaguar mechanic who was experienced at installing front and rear glass in a Series III ... | |
| '84 XJ6 loss of power, continued | 8/22/2010 |
| Q: Howard, First, thanks again for volunteering your time here! I was able to get those stuck lower ... A: If you have the timing correct, (17 deg BTDC) the compression test showed good, (125 to 165 PSI) the ... | |
| '84 XJ6 loss of power, continued | 8/22/2010 |
| Q: Howard, First, thanks again for volunteering your time here! I was able to get those stuck lower ... A: Your symptoms do not pin point the problem so you need now to run a lot of tests of the system. ... | |
| '87 XJ6 injectors not firing | 8/22/2010 |
| Q: My '87 XJ6 seems to not be firing the injectors. When I connect the noid light, I get no flashes. I ... A: When you have no flash from a Noid light you first need to confirm power to the injector. Then ... | |
| ac compresser | 8/21/2010 |
| Q: A: The Harrison compressor has a high failure rate and even the rebuilt ones do too. Many just start ... | |
| 1984 xj6 series 3 | 8/20/2010 |
| Q: My 84 xj6 will start and run for a second or two and die. Alot of the relays have been replaced and ... A: All engines only require 3 items to run (with conditions on each) 1.Compression --- 135 PSI to 165 ... | |
| can not get my jaguar out of park | 8/20/2010 |
| Q: my jaguar will not go into reverse or drive A: If the shift lever is stuck in Park and you are on a steep grade, it most likely is the load of the ... | |
| '84 XJ6 ball joints | 8/19/2010 |
| Q: Howard, I was attempting to replace my front lower ball joints tonight, but it seems the ball pins ... A: That ball can be a tough one because of the mild angle on the tapered shaft. Some mechanics are ... | |
| 86 XJ6 Distributor install | 8/18/2010 |
| Q: I recently acquired a "new" distributor on ebay with the following description: "YOU ARE BIDDING ... A: I have never tried to install a Series II distributor on a Series III but if the plug connector is ... | |
| 1986 XJ6 Engine Tapping Noise | 8/17/2010 |
| Q: I have a tapping noise which sounds like it is coming from the top of the engine. This tapping is ... A: By "tapping" I take it that it is a light noise. If it were mine I would first use a mechanic's ... | |
| '84 XJ6 NOW A/C | 8/17/2010 |
| Q: Howard, By kit, I meant the retrofit kits that come with a bottle of R134a, and fittings - usually ... A: Michael, R134 is poisonous in it's natural form and not much of a refrigerant to boot, which ... | |
| 1984 SeriesIII Federal wont drive when warm | 8/17/2010 |
| Q: Back again with my hiccuping Jag, Thanks for your earlier help. I finally got the car started by ... A: My guess is that the injectors needed work because of the rust in the fuel had got past the fuel ... | |
| '84 XJ6 loss of power, continued - NOW A/C | 8/16/2010 |
| Q: Howard, Thanks again so much for guiding me through getting the '84 XJ6 not only running, but ... A: Glad you got it running ok. Bypassing the system to activate the clutch only tests the clutch. You ... | |
| '84 XJ6 loss of power, continued | 8/12/2010 |
| Q: Howard, I have experience with my '99 Land Rover Discovery and part number issues, as in I have to ... A: Yes, earlier Ser III cars had the regulator in the middle of the rail with hose connections and the ... | |
| XJ6 SIII Turn Signal Issues | 8/11/2010 |
| Q: Bought an '86 XJ6 S-III last year, runs great (152K) and the only main problem I'm having is the ... A: The flasher operates by resistance meaning that when there is low resistance (good connection) the ... | |
| '84 XJ6 loss of power, continued | 8/11/2010 |
| Q: Howard, I made the necessary modifications to the front catalytic converter to improve airflow, but ... A: The high RPM and high load is what you need to look at for back pressure as opposed to a quick ... | |
| '84 XJ6 loss of power, continued | 8/8/2010 |
| Q: Howard, First, thanks for answering these questions, and quite frankly, helping me become a better ... A: Ouch! The original was just bolted in. In that case you need to have a muffler shop pull the system ... | |
| '84 XJ6 loss of power, continued | 8/8/2010 |
| Q: Howard, First, thanks for answering these questions, and quite frankly, helping me become a better ... A: I would not consider putting in the second CAT until I addressed the first CAT. If the First is ... | |
| '84 XJ6 loss of power, continued | 8/8/2010 |
| Q: Howard, First, thanks for answering these questions, and quite frankly, helping me become a better ... A: You are a repair shop and need to check the laws first as back in the 70s I remember BLM telling us ... | |
| '84 XJ6 loss of power, continued | 8/7/2010 |
| Q: Howard, Ok, I just ran those two tests. As for fuel pressure, by your info it would seem I have a ... A: Yes, the regulator is bad. Residual pressure is of no use. Only pump pressure with normal vacuum on ... | |
| '84 XJ6 loss of power, continued | 8/7/2010 |
| Q: Howard, I have performed the next round of tests and found 30 PSI fuel pressure at idle, under ... A: When the vacuum goes to zero that is a indication of a stopped up exhaust system. Pull one of the ... | |
| '84 XJ6 loss of power, continued | 8/5/2010 |
| Q: Howard, So, previously we have covered that I have good to great compression, had drained both tanks ... A: It is a waste of time guessing. Testing is the ONLY method to arrive at any conclusion. If you ... | |
| hood | 8/4/2010 |
| Q: 1985 xj6 I cannot get the passenger side hood to release. I need to charge the battery and can not ... A: In under the fender in the wheel well is a hole that you can insert a large heavy screwdriver to pry ... | |
| '84 XJ6 loss of power, continued | 8/2/2010 |
| Q: Howard, When I posted the previous question, it was more of a curiosity as the car had run fine ... A: If you had that much rust in the tank, your fuel filter has to be partially clogged. Vacuum line ... | |
| 1984 Jaguar XJ6 Fuel vapors and over flow | 7/31/2010 |
| Q: 1. Here is the latest tale in the ongoing saga with gas fumes. I read something on the net about a ... A: The switching valve in the trunk only switches the fuel supply of either the right tank when it is ... | |
| '84 XJ6 loss of power | 7/29/2010 |
| Q: I purchased an XJ6 from an individual and only traveled about 30 miles before I lost power. It was ... A: It sounds like you have several issues. It also sounds like the car has not been driven in a long ... | |
| 1986 Jag XJ6 dies | 7/28/2010 |
| Q: Test results: ALL TESTS IN FAILED MODE spark test: good air flap open (key on): 32/40 psi noid test: ... A: If all the injector wires are off, you may see power on only one side but if only one injector wire ... | |
| 1986 Jag XJ6 dies | 7/28/2010 |
| Q: Test results: ALL TESTS IN FAILED MODE spark test: good air flap open (key on): 32/40 psi noid test: ... A: Adam, the injectors are electromagnets which are coils. If you have power on one side you MUST have ... | |
| cal screen vent | 7/28/2010 |
| Q: on 85 xj6 when shold the vent in cal be open to draw air inside car. A: Fresh air enters the car at all times. The AC/Heat decides where to rout the air. There is no time ... | |
| catlitat comverter | 7/28/2010 |
| Q: me howard if acatlated converter is gutted will o2 senser operate in same manner. ps// is there a ... A: The O2 sensor is before the first CAT so It would operate as normal. The O2 sensor is a minor ... | |
| Wipers Don't Work on 86 XJ6 | 7/28/2010 |
| Q: in your answer you stated "First I would confirm that you have power at the light green wire at the ... A: I have no idea why I said "signal switch" and no defense other than I answer these questions ... | |
| 1986 Jag XJ6 dies | 7/27/2010 |
| Q: Will pick up a voltmeter on the way home from work today, I have a 12v test light. Ready to go! ... A: Ok, At the last time when spray makes it run and no spray makes it stop there is NO injection of ... | |
| '84 XJ6 fuel pump noise | 7/27/2010 |
| Q: I bought an '84 XJ6 7/24/10 as a project, I've been reading a lot here since, but haven't seen this ... A: The fine vibration is normal for the design of the pump. It is a roller cell pump and the pressure ... | |
| 1986 Jag XJ6 dies | 7/27/2010 |
| Q: Will pick up a voltmeter on the way home from work today, I have a 12v test light. Ready to go! ... A: Adam, If the Noid light flashed on every injector wire then the injection system is operating. If it ... | |
| '84 XJ6 fuel pump noise | 7/27/2010 |
| Q: I bought an '84 XJ6 7/24/10 as a project, I've been reading a lot here since, but haven't seen this ... A: Even though it is normal to be able to listen carefully and hear the pump running it is not normal ... | |
| 1986 Jag XJ6 dies | 7/26/2010 |
| Q: Will pick up a voltmeter on the way home from work today, I have a 12v test light. Ready to go! A: Go to http://mg-tri-jag.net/XJ-6Inject1.jpg for half of the diagram and change the ending on the URL ... | |
| Re: 1986 XJ6 dies after running | 7/26/2010 |
| Q: Ordered the proper pressure tester and fitting, tested BEFORE fuel rail and got 32 psi & 40 psi ... A: OK, the 20 PSI is useless info as when the engine dies the flap in the airflow meter closes and that ... | |
| 1986 Jaguar Fuel Sending Units | 7/26/2010 |
| Q: I found that my sending unit in the left tank had a broken wire. The metal connection that hooks to ... A: You got me, I didn't know there was a right and a left. I guess I never tried to switch them. I have ... | |
| Re: 1986 XJ6 dies after running | 7/25/2010 |
| Q: Ordered the proper pressure tester and fitting, tested BEFORE fuel rail and got 32 psi & 40 psi ... A: Adam, While an orange color spark is not considered good, it fired off with spray. You originally ... | |
| temp controle///// pot/// | 7/25/2010 |
| Q: mr howard on 86 jag xj6 what are the simptoms when the controle that regulate heat and air goes bad ... A: Sorry Jim, I have never been able to isolate any item to a symptom on the Jag AC system. The only ... | |
| 84 XJ6 windows | 7/24/2010 |
| Q: The passenger front window works in my 84 XJ6 but not the others or the sun roof or radio. My ... A: The windows and the power seat have nothing to do with each other. The windows are powered by ... | |
| Re: 1986 XJ6 dies after running | 7/24/2010 |
| Q: Ordered the proper pressure tester and fitting, tested BEFORE fuel rail and got 32 psi & 40 psi ... A: The pressure test is correct (the fuel after the regulator is dumped fuel going back to the tank so ... | |
| rear main seal | 7/21/2010 |
| Q: is there anyway to put rear main oil seal in 86 xj6 jaguare without ermoving oil pan A: You hit a sore spot with me and BLM on that subject. The retainers that hold the two halves of the ... | |
| 86 Jag Valve Tappet lockdowns | 7/20/2010 |
| Q: I have the 4.2 6 cyl in my car. Several people have stated on different web sites that if you hear a ... A: Scott, the Jag 6 cylinder engines have had that problem all the way back to the XK-120. It is ... | |
| low power and backfire up hills | 7/19/2010 |
| Q: I have a 1969 XKE 4.2 series 2. When going up steeper hills the car loses power and backfires. I ... A: Your symptoms only narrow the problem down to a thousand things so you must test to get closer to ... | |
| 86 Jag XJ6 Fuel Tank problem | 7/19/2010 |
| Q: I just bought this car with 58,000 miles after it sat for 12 years. After driving it for a week, I ... A: That's good Scott, however to be sure you should have looked at both return lines to see that either ... | |
| 86 Jag XJ6 Fuel Tank problem | 7/19/2010 |
| Q: I just bought this car with 58,000 miles after it sat for 12 years. After driving it for a week, I ... A: What do you mean by "seems to be working" I know what "works" is and "Not work" means but there is ... | |
| 1985 xj6 complete window failure | 7/18/2010 |
| Q: Mr. Fitzcharles, I just bought a 1985 xj6. It has been stored for 8 years. I can't seem to find the ... A: The fuse is a thermal breaker and it automatically resets but that too can fail so the only method ... | |
| 1985 XJ6 Rear Brakes | 7/18/2010 |
| Q: Mr. Fitzcharles, I have removed my rear brake pads on my 1985 xj6. I have noticed a differance in ... A: No, this is not normal and it is a clear indication you need to remove and either rebuild or replace ... | |
| exzost | 7/17/2010 |
| Q: is it safe to gut a catlic converter on 86 xj6 jaguar// and what can u/// do to your door seals ... A: I don't think you are allowed to gut a CAT but many do it. As far as the car goes, it will only ... | |
| '84 Jaguar XJ6 white smoke from hood | 7/16/2010 |
| Q: I recently purchased a 84 Jaguar XJ6. It runs smooth and has recently been serviced, but after ... A: 90 deg C. is normal operating temperature but white smoke from under the hood is not normal but that ... | |
| how to get the rust from my xj6 car | 7/16/2010 |
| Q: I have a 1986 XJ6 sitting outside for the past 4-6 years, it became rusted on top, then I covered ... A: The rust does need to be removed but it will take a professional body shop to determine how bad it ... | |
| 87 Jaguar xjs rear brakes siezed | 7/14/2010 |
| Q: After my wife drove the 87 XJS this morning (maybe for 3 km) there was smoke coming out of the left ... A: You need to get the car up on a lift or up on jack stands and get under and look. But the first ... | |
| 1986 XJ6 dies after running | 7/12/2010 |
| Q: for your insight. Performed fuel test as recommended: Both relays clicked, I could hear the rails ... A: You need to establish correct fuel pressure first since you now know that pump is running. (32 PSI ... | |
| 3psi valve from tank to canister | 7/10/2010 |
| Q: do you know of a universal replacement for the pressure valve. i am hoping to pick one up locally ... A: The fuel can not transfer to the wrong tank and over fill it unless one or more valves fail. Any ... | |
| 1986 XJ6 dies after running | 7/10/2010 |
| Q: Here's the scenario: The car was driven 30-35 mins, shut on/off twice, died abruptly mid road... ... A: Again, try to start the car and if it does not start remove the air cleaner and turn on the key and ... | |
| 3psi valve from tank to canister | 7/10/2010 |
| Q: do you know of a universal replacement for the pressure valve. i am hoping to pick one up locally ... A: Either the switching valve in the trunk has failed or the return valve in the lower wheel well has ... | |
| 1986 XJ6 dies after running | 7/8/2010 |
| Q: Here's the scenario: The car was driven 30-35 mins, shut on/off twice, died abruptly mid road... ... A: The fuel filter is one of hundreds of things that can shut the engine down. You may run out of money ... | |
| temp controle | 7/8/2010 |
| Q: 85 jag xj6 temp switch// how do taht switch work i got 2 use ones at junk yard hook up thay didn/t ... A: A rotating drum controls the opening and closing of vacuum motors and that is controlled by several ... | |
| temp controle | 7/7/2010 |
| Q: 85 jag xj6 temp switch// how do taht switch work i got 2 use ones at junk yard hook up thay didn/t ... A: James, It is not likely that three switches in a row, even if they are used from a junk yard are all ... | |
| 1974 xke a/c relay | 7/7/2010 |
| Q: a/c is not working and after checking freon levels and compressor(which are ok) it appears the relay ... A: I didn't do much AC work on the E-types but I did find this diagram that may help. I don't know who ... | |
| compresson | 7/5/2010 |
| Q: mr howard i have 86xj6 jag ben sttting 4 years low compresson what is the best thing to do #1 syl 60 ... A: The first thing is did you open the throttle when you ran the compression test? If not run it again ... | |
| 1985 XJ6 Rear Brakes | 7/3/2010 |
| Q: Sir, I have a 1985 XJ6 and the rear brakes are noisey. The pads are worn down but after inspection ... A: kim, I don't know what you are able to do or not do. But if you can change a front set of pads you ... | |
| moldings | 7/3/2010 |
| Q: mr moward i have a85 xj6 with the crome strips on rocker panels how can i remove the whatcan i do to ... A: Jaguar did not come with chrome strips on the rocker panels so I have no clue how to get them loose. ... | |
| 1987 XJ6 | 7/1/2010 |
| Q: actually two questions: can we generate a flow of outside air into the cabin on nice days when heat ... A: There are two ways to do it. One is to purchase the Euro version vents to go in the left and right ... | |
| Brake lights | 7/1/2010 |
| Q: Mr. Fitzcharles, Thank you for helping me get my instruments working. I found a poor fuse ... A: Sorry Kim, no easy short cuts I know of. Most that I pulled down, I had the whole dash off. I only ... | |
| Brake lights | 7/1/2010 |
| Q: Mr. Fitzcharles, Thank you for helping me get my instruments working. I found a poor fuse ... A: You need to remind me what kind of car this is when asking a new question so I don't have to dig ... | |
| Blown Headgaskets | 6/28/2010 |
| Q: I was advised that my 1987 Jaguar XJS 12 has a blown head gasket and one mechanic in San Leandro, ... A: The high $ quote is probably accurate because the cylinders are called "Wet Cylinders" meaning that ... | |
| xjs v12 ecu | 6/27/2010 |
| Q: I have no power to one side of injector plugs and no power to electric fuel pump. From a previous ... A: Not sure the Australian version is the same as the US version but here is what I have. I have two ... | |
| trans | 6/24/2010 |
| Q: i have 85 xj6 jag i would like to kno// f// u// kno// why it take so long to shift to hi gear do it ... A: I am not an automatic transmission tech but I have been working on and driving the series III Jags ... | |
| 1986 xj6 intake air temp sensor | 6/24/2010 |
| Q: However I live in palm desert ca. and when the ambient air is 90 deg f. or better the car does not ... A: The air temp sensor can be tested by use of an ohm meter between pin #6 and #27 in the airflow ... | |
| 76 daimler sovreign double six | 6/21/2010 |
| Q: would the diesel battery maybe fix the prob, i'm having where all the injectors fire up, fuel pumps ... A: The Jaguar version does have that problem and I would guess your car probably does too but I have no ... | |
| 85 XJ6 instruments | 6/19/2010 |
| Q: Sir, I have a 1985 XJ6 and the instruments work sometimes and then quit (tach,speedo,gas etc. Any ... A: All of those instruments share a common fuse. You must test it with a test light or volt meter at ... | |
| misses | 6/18/2010 |
| Q: idols well powers up well when cruising it misses 1983 solvereign ANSWER: Hi David, That symptom ... A: The AC system is a complex system and controlled by a rotating drum of micro switches and vacuum ... | |
| vac survo | 6/14/2010 |
| Q: A: James, that's the only diagram I have and if your wires are not where they should be on the diagram ... | |
| SERIES III FUEL PUMP | 6/14/2010 |
| Q: I HAVE A 1974 XKE SERIES III V 12---IT HAS BEEN RUNNING FINE. LAST WEEK I STARTED IT TO PULL IT IN ... A: I could not find a diagram of the V-12 ser III but I do believe it had the same fuel system as the ... | |
| vac survo | 6/12/2010 |
| Q: mr howard i have change vac yes survo relay on left side panel at knee ad and there was sompthing ... A: James, don't replace any parts until you find out what is wrong. With the diagram just use a powered ... | |
| vaccum servo | 6/11/2010 |
| Q: mr howard why ods it take so long for the vaccum servo to work after i cut on my ac on 85 xj6 jag. ... A: James, If it were mine, I would have the 134 evacuated by one of the retrieving systems, as 134 is ... | |
| heater blower | 6/10/2010 |
| Q: 85 xj6 blower moter workf fine on all speeds dont work on low check resister in hehter box behine ... A: The relay pack (lower left side of console) controls the power to the different sections of the ... | |
| vaccum servo | 6/10/2010 |
| Q: mr howard why ods it take so long for the vaccum servo to work after i cut on my ac on 85 xj6 jag. ... A: Your gauge readings should be (after the system was evacuated and R-12 installed) 50 PSI on the low ... | |
| 87 xjs v12 transmission | 6/10/2010 |
| Q: Recently had transmission rebuilt at nationally advertised franchise shop. After returning it for ... A: A wine in low range has to be inside the gearbox but there is a problem with Jag transmission ... | |
| automatic gearbox,car wont go forward! | 6/9/2010 |
| Q: I bought an XJ 4.2 C, it has been garaged for 18 years. We drove her onto a trailer and she ran well ... A: I am not familiar with the 75 XJ-6 C box as it is not a BW 66 but possibly a BW 65 or another ... | |
| automatic gearbox,car wont go forward! | 6/8/2010 |
| Q: I bought an XJ 4.2 C, it has been garaged for 18 years. We drove her onto a trailer and she ran well ... A: I am not an automatic transmission expert but it sounds like you need to clean or have the valve ... | |
| Jag 1986 XJSC 3.6 euro no start | 6/4/2010 |
| Q: Hey Henry, I have an 86 3.6 euro XJS that will not run when the coolant temp switch is connected to ... A: I have no experience with a Euro version of the XJ-S. If this has the Bosch "L" Jetronic injection ... | |
| 1985 XJ6 Window problem | 6/4/2010 |
| Q: I recently purchased a pristine 85 XJ6 with 58K. The sunroof and power windows work sporadically and ... A: The rocker switches do fail often and the only good thing is that the switches can be disassembled ... | |
| windows | 6/1/2010 |
| Q: now my right rear window dont work. is the windows oprated with relays.if so where are they and do ... A: No separate relay, you need to take the two wires at the switch that go to the window motor ( red ... | |
| fuel tonk vaccum | 6/1/2010 |
| Q: mi mr howard on my 86 xj6 when i open my gas pap before there was a suckson nois i dont kno// what ... A: The tanks are under pressure not vacuum and it is about 3PSI. The pressure is controlled by a small ... | |
| Resetting the ECU | 5/30/2010 |
| Q: I have been reading a lot of your answers on here and they've actually helped me about quite a bit! ... A: It sounds like you are on the right track. I don't like to do a cylinder kill test on electronic ... | |
| XJ6 Series lll ECU Earth point. | 5/28/2010 |
| Q: I have a 1984 Sovereign, Australian Delivered 4.2. I have had the car about 6 months and it has been ... A: A Noid light is a small light that plugs into the injection harness to test for an injection pulse. ... | |
| XJ6 Series lll ECU Earth point. | 5/28/2010 |
| Q: I have a 1984 Sovereign, Australian Delivered 4.2. I have had the car about 6 months and it has been ... A: First confirm that you have power to the injectors with the key on and use a Noid light to confirm ... | |
| crankshaft end play v12 | 5/26/2010 |
| Q: Had to be redone because the new torque converter failed. The shop reported that the crankshaft end ... A: If you have .008" end play in the crankshaft and your transmission shop said that caused a torque ... | |
| 86 XJSC engine cuts off after 2 seconds. | 5/25/2010 |
| Q: Hey Howard, I have an 86 XJSC euro 3.8 5 speed. The car was running choppy but runiing last week. ... A: Since it runs on spray fuel it is for sure injection so you need to put a noid light on a injection ... | |
| 86 XJSC engine cuts off after 2 seconds. | 5/25/2010 |
| Q: Hey Howard, I have an 86 XJSC euro 3.8 5 speed. The car was running choppy but runiing last week. ... A: Did you do all the testing at the exact time of cut off? Did it have 30+ PSI when it died? Did you ... | |
| car ramps | 5/23/2010 |
| Q: Howard, Is it possible to use car ramps for my 85 xj6. I have heard both good and bad about them. I ... A: Most of the car ramps I have seen and have are not strong enough to handle a XJ-6 Jag. I sure would ... | |
| Big ol problem | 5/20/2010 |
| Q: many thanks for your help before with my 1985 XJS v12 HE. It turned out as it was sitting for so ... A: Your welcome Mark, Doc says as far as beer goes I can only have Bush NA now. ha! (non alcoholic). ... | |
| Big ol problem | 5/19/2010 |
| Q: many thanks for your help before with my 1985 XJS v12 HE. It turned out as it was sitting for so ... A: #4 fuse powers all the instruments. What do you mean "all the fuses seem fine"? Did you test both ... | |
| 1988 xjs window relay | 5/18/2010 |
| Q: both of the windows do not work. Do you know where the relay for the window are. the switches ... A: I don't work on any Jaguar after the 1987 models but I did happen to have a 88 locater and found ... | |
| E type Jag | 5/16/2010 |
| Q: what was the standard stereo / 8 track / cassette player issued in a 1973 e type v12 5.3 jaguar? A: Sorry Max the Jags came with no radio nor cassette players from Jaguar. We at the dealerships ... | |
| Car Smell | 5/14/2010 |
| Q: I have a 1985 XJ6 that has a funky smell. It is kind of a gas/oil/old smell. Is there something I ... A: I wish there was a magic adjustment to go to for a smell but there is not. So the only thing you can ... | |
| 86 jag xj6 | 5/12/2010 |
| Q: howard, we have red and green light on speed signal only on ecm, not on coil. white wire with black ... A: And pins 5, 16, 17 and 35 are good grounds? If so you need to find a known good ECU to try. But ... | |
| 86 jag xj6 | 5/10/2010 |
| Q: howard, we have red and green light on speed signal only on ecm, not on coil. white wire with black ... A: Bob, You didn't say that you were spinning the engine when you tested the injectors. Did you use a ... | |
| 86 jag xj6 | 5/7/2010 |
| Q: howard, we have red and green light on speed signal only on ecm, not on coil. white wire with black ... A: The engine speed signal is the coil wire (White w/black tracer wire) and you can't have a steady ... | |
| 76 jag xj6 | 5/2/2010 |
| Q: no negitive signal from ecm to injector. ecm is putting out a positive signal when the key is on. ... A: So you have a Logic Probe with the red and green LED? That is good and it will not interrupt the ... | |
| 1987 XJ6 will not accelerate | 5/1/2010 |
| Q: I was offered a free 1987 XJ6. The owner told me that she listened to the stereo too long and needed ... A: I know of no magic screw to go turn to make it all well but it can be something as simple as a blown ... | |
| Jag series 3 | 4/30/2010 |
| Q: I have a 1985 Jaguar series 3 4.2. There are 80,000 miles on the clock. When should the timing chain ... A: The series III XJ-6 has a chain and it does not require changing at any certain mileage. The top ... | |
| 85 xj6 | 4/30/2010 |
| Q: thinks james A: If those lights are on with the light switch off then all you need to do is to take your wiring ... | |
| 84 Vanden Plas 6 cyl coolant in one cyl. | 4/29/2010 |
| Q: How prone to cracks in head or liners/liner seals are these engines? Your opinion appreciated, also ... A: As for the manual, Bentley or the Jag manual are good and if you have done a 6 cylinder valve job on ... | |
| 84 Vanden Plas 6 cyl coolant in one cyl. | 4/27/2010 |
| Q: How prone to cracks in head or liners/liner seals are these engines? Your opinion appreciated, also ... A: A leaking head gasket is possible but so is a leaking intake manifold gasket. Head or block cracks ... | |
| 76 jag xj6 | 4/27/2010 |
| Q: no negitive signal from ecm to injector. ecm is putting out a positive signal when the key is on. ... A: I have never seen an engine that would run on starting fluid that would not run on gasoline. But ... | |
| Remove rear door window motor - 85 VP | 4/25/2010 |
| Q: 85 Vanden Plas US California. I have removed the LH rear door panel and disconnected the 2 wires ... A: The four screws are on the forward part of the door and your manual should have indicated them. They ... | |
| 76 jag xj6 | 4/24/2010 |
| Q: no negitive signal from ecm to injector. ecm is putting out a positive signal when the key is on. A: I take it you mean an "86" XJ-6? The ECU grounds the injectors when it sees an engine speed signal ... | |
| Horn | 4/24/2010 |
| Q: I recently bought a 1985 XJ6. When I turn the steering wheel to the right my horn honks. Do you know ... A: You have a short in the horn components in the steering shaft so you have to remove the center pad ... | |
| XJS V12 HE wont start | 4/20/2010 |
| Q: I have a problematic XJS V12 HE 1985 Originally the car would not start. Fuel and spark ok but ... A: I have always learned to look at "End Result" in testing electrical or mechanical. "What don't work? ... | |
| XJS V12 HE wont start | 4/20/2010 |
| Q: I have a problematic XJS V12 HE 1985 Originally the car would not start. Fuel and spark ok but ... A: I am not proficient on the V-12 injection system but do know a few things to check. The main relay ... | |
| 87 XJ6 Vanden Plas Injector Pulse issue | 4/14/2010 |
| Q: I have an 87 Vanden Plas, I am trying to find a wiring diagram and manual. The problem I am having ... A: Power on both sides of the injector wire is normal. Power is supplied to a resistor pack on the ... | |
| 1986 xjs no injector signal | 4/6/2010 |
| Q: I repaired the wiring to my injectors and also better understand the system and the other parts ... A: The ignition reluctor triggers the ignition system to ground and disconnect the coil and the ECU ... | |
| Jag 420 | 4/1/2010 |
| Q: Hi I am working on a 420 there is 1 piston I can not move do I just keep on with penetrating oil and ... A: I take it that you have the head off since you say ONE piston you can't move? If the piston is not ... | |
| jag radio relay | 4/1/2010 |
| Q: I've read your previous answer regarding no power to a S3 XJ6 radio. I have an '86 XJ6. I have the ... A: A relay is easy to test but impossible to look at the insides to make a determination as to ... | |
| Noise coming from rear end or back tires | 3/23/2010 |
| Q: I have a noise coming from the rear of my 1985 xj6 series 3 took off rear tire and could not see ... A: No, there is not suppose to be any movement in the axle nut. The bearings are set to a "Preload" and ... | |
| Noise coming from rear end or back tires | 3/22/2010 |
| Q: I have a noise coming from the rear of my 1985 xj6 series 3 took off rear tire and could not see ... A: It is rare that anything would be visible on a rear noise. The best way is to put the car on a lift ... | |
| 1986 xjs jag wiring | 3/22/2010 |
| Q: I recently purchased a 1986 xjs for a decent price and didn't question the many problems a car like ... A: Larry, PC is back up and the diagram for that Vin # is up on my web site at, ... | |
| 1986 xjs jag wiring | 3/21/2010 |
| Q: I recently purchased a 1986 xjs for a decent price and didn't question the many problems a car like ... A: I have good diagrams of the injection system but there are three different ones for the XJ-S in the ... | |
| 1986 xjs jag wiring | 3/18/2010 |
| Q: I recently purchased a 1986 xjs for a decent price and didn't question the many problems a car like ... A: The tests for power on the injector leads must be done with all the injectors disconnected because ... | |
| airflow meter | 3/17/2010 |
| Q: I tested the airflow meter as suggested Pin #6 to #27 was 3.86 @ 50 Farenheit. Opened and closed the ... A: The vacuum that the engine produces is what opens that flap so If it is not opening, you need to run ... | |
| them | 3/13/2010 |
| Q: why can't I run without a thermostat, I have done it in other models that tend to run hot and it has ... A: If you look closely you will notice that there is a large bypass hose on the thermostat housing and ... | |
| fuel injection | 3/11/2010 |
| Q: I have a 1985 jaguar XJ6 4.2. Some months back the engine started to run a little rough on idle and ... A: You should not replace parts until you know what part has failed. The test for a pressure regulator ... | |
| windshield wipers | 3/7/2010 |
| Q: My windshield wipers quit working. I checked the fuse and it is good. Can you tell me what i might ... A: Any time you have a fuse burn you need to look on your wiring diagram to see what items it powers ... | |
| 1986 XJ6 4.2 constant energy | 3/2/2010 |
| Q: cranks but no spark (fuel pump works). - have 12v at both terminal of coil (new) with ign sw on ... A: Yes, the pick up should measure 2.2 K ohms to 4.8 K ohms. Most of the failed pick ups that I seen ... | |
| windshield wipers | 2/24/2010 |
| Q: My windshield wipers quit working. I checked the fuse and it is good. Can you tell me what i might ... A: First I would confirm that you have power at the light green wire at the signal switch. (you should ... | |
| Master Switch Location | 2/23/2010 |
| Q: I just bought a 87 xj6 vp drove off and went to show it off to my friends at work, ?1:When I left ... A: If any window operates then the master switch is not the problem because the master switch turns all ... | |
| 1987 XJ 40 3.6 | 2/17/2010 |
| Q: . Thanks Danny A: The 40 series didn't come here until 88 and I have no experience on them. However, the charging ... | |
| xjs engine changed | 2/16/2010 |
| Q: may I pick your brains I have been left the job of finishing an engine change on a 84 xjs 3.6 . the ... A: I don't have any experience with the "AJ-6 16" (3.6 inline 6 w/16 valves) however every inline 6 ... | |
| Engine bay wiring | 2/14/2010 |
| Q: You really know your stuff under the hood! I am just finishing rewiring my XJ6 Series 3 4.2 EFi and ... A: If you have put a radiator in that don't have a switch, that may not be a problem as many Ser. III ... | |
| Engine bay wiring | 2/13/2010 |
| Q: You really know your stuff under the hood! I am just finishing rewiring my XJ6 Series 3 4.2 EFi and ... A: The only green w/orange wire I can find up front is a Light green w/orange that goes to the thermo ... | |
| Jaguar xjs V12 wont turn over. | 2/7/2010 |
| Q: I just received a Jag for free. The previous owner had given up on it after replacing the ... A: I learned working in Jag dealerships not to try to diagnose by symptoms because like yours it only ... | |
| 86 XJ6 Heater Fan & Temp gauge both stopped working | 2/6/2010 |
| Q: It may be coincidence, or something electrically common, that both are cooling system related. In ... A: Yes, If it were mine I would first use a jumper to power up the fans to see if they are good. Then ... | |
| 86 XJ6 Heater Fan & Temp gauge both stopped working | 2/6/2010 |
| Q: It may be coincidence, or something electrically common, that both are cooling system related. In ... A: All gauges operate off of one power supply (fuse #4) Neither fan is powered by that fuse. The ... | |
| HELP!! Thanks for your site! | 2/4/2010 |
| Q: Hood alignment issue on 87 jag... it just wont latch. Will bonnet replacement help? i also have a ... A: As for the hood latches, You need to determine what is wrong before trying to make any adjustment or ... | |
| 86 XJ6 Start problems | 2/3/2010 |
| Q: I stored this Jag for 6 or 7 years and am now trying to bring it back to life. It used to run fine. ... A: The injection system is the Bosch "L" Jetronic system and leaving it for any length of time can ... | |
| 86 XJ6 Start problems | 2/3/2010 |
| Q: I stored this Jag for 6 or 7 years and am now trying to bring it back to life. It used to run fine. ... A: The ignition unit (mounted on the front of the intake manifold)receives a signal from the ... | |
| Battery draining | 1/28/2010 |
| Q: I have a 1985 xj6 the # 3 main fuse driver side and the # 5 fuse passenger side is draning my ... A: It is normal that one switch turns on the other lights also. You are just concerned that the lights ... | |
| Battery draining | 1/28/2010 |
| Q: I have a 1985 xj6 the # 3 main fuse driver side and the # 5 fuse passenger side is draning my ... A: The main (driver's fuse panel)fuse panel fuse #3 powers the rear door lights, trunk light, interior ... | |
| xj6 watre leak | 1/25/2010 |
| Q: ih mr howard i have a 85 xj6 and when it rain i get water in floor on both sides where could it ... A: Most of the time the Series 3 Jag leaks in the lower corners of the windshield and runs down from ... | |
| coil problems | 1/25/2010 |
| Q: Can you suggest aftermarket brands of coil and amplifiers to fit xj6 australian model 1984 as my ... A: I try to use Lucas coils that apply to the Jag as Jag uses a ballast resistor and the coil must ... | |
| '87 XJ6 wiring harness | 1/25/2010 |
| Q: Recently started to restore my 1987 Jaguar XJ6 4.2 liter engine. Most the wiring under the needed ... A: The Alt only takes two wires and they are one large brown wire (power all the time) and the smaller ... | |
| '87 XJ6 wiring harness | 1/25/2010 |
| Q: Recently started to restore my 1987 Jaguar XJ6 4.2 liter engine. Most the wiring under the needed ... A: There are two wires on the alternator and there is a wire that goes to the back of the AC compressor ... | |
| fuel supply | 1/23/2010 |
| Q: This a follow up from before. I replaced the right sending unit(it works now. I had several ... A: You need to put a fuel pressure gauge on a "T" fitting in the fuel line just where it meets the fuel ... | |
| 87 jag speakers | 1/21/2010 |
| Q: How to I take the speakers out of the door to replace them? Also what size are they? A: To gain access to the radio speakers you need to remove the door arm rest and door panel then you ... | |
| jaguar wont start | 1/18/2010 |
| Q: this morning i was cleaning some contacts on my 1985 XJS V-12 jaguar and after I cleaned some on the ... A: It sounds like it is one of the contacts you cleaned so I would go back to every one you cleaned and ... | |
| 1985 JagXJ6 | 1/18/2010 |
| Q: My steering wheel is very loose..thinking it could be a screw adjustment in the steering box? A: This is a common problem and you need have some one in the car and moving the wheel back and forth ... | |
| fuel supply | 1/16/2010 |
| Q: This a follow up from before. I replaced the right sending unit(it works now. I had several ... A: Boyce, you are in danger! where did you find a clear filter that can stand 45 PSI? None that I know ... | |
| XJ6 (1987) fuel tank L/R switch | 1/15/2010 |
| Q: Is it possible to by-pass or remove the left/right fuel valve/switch in my 1987 Jaguar XJ6? What ... A: The switching system could be eliminated by replacing the fuel supply switching valve with a "Y" ... | |
| fuel supply | 1/15/2010 |
| Q: This a follow up from before. I replaced the right sending unit(it works now. I had several ... A: Remove the air filter can and turn on the ignition and reach in the front of the air flow meter and ... | |
| my 85 xj6 will try to turn over but !!!! | 1/14/2010 |
| Q: ok my 85xj6 keeps trying to turn over to start but never qite gets there for some odd reason i ran ... A: What you tell me narrows the problem down to only a thousand possible causes. You need to do some ... | |
| 1987 XJS | 1/14/2010 |
| Q: I read your answer about the heater control valve. I believe I have tracked down my heater problem ... A: I have not worked on the "S" in many years but as I remember you have to remove the wiper arms and ... | |
| Window Switches | 1/11/2010 |
| Q: I am replacing all of the window switches in my 85 XJ6. I have had so many problems, and it seems ... A: I have never tried the aftermarket switches. I always just cleaned the old switches but I got ... | |
| XJ6 loses power | 12/29/2009 |
| Q: My 1987 XJ6 loses power on hills or above 40 mph. So far, I've changed the air flow meter, renewed ... A: That sounds like what it is, but do the test that opens the exhaust up front to be sure. I ran the ... | |
| XJ6 loses power | 12/29/2009 |
| Q: My 1987 XJ6 loses power on hills or above 40 mph. So far, I've changed the air flow meter, renewed ... A: It is a indication that you have an exhaust problem although a quick rev up does have a lot of air ... | |
| XJ6 loses power | 12/28/2009 |
| Q: My 1987 XJ6 loses power on hills or above 40 mph. So far, I've changed the air flow meter, renewed ... A: Remove one of the hex plugs on the exhaust manifold and find a rubber plug to plug the hole and ... | |
| Jag fuel system | 12/28/2009 |
| Q: I will check the switching valve. I had an extra one applied power and no click. I will remove the ... A: When you are operating on the right tank and fuel is overflowing the tank it means that the fuel is ... | |
| Jaguar fuel system | 12/27/2009 |
| Q: My 1982 Jaguar XJ6 leaks fuel. The right sending unit float is bad, removed and checked unit today, ... A: It is normal to have pressure in the tanks when you open either cap which relieves the pressure in ... | |
| A/C system blowing fuses | 12/16/2009 |
| Q: I'm trying to identify an electrical problem I have with my 1983 XJ6. Whenever I turn the climate ... A: All the info that I have is for the US version. However, I believe most should be the same as the ... | |
| 85 xj6 | 12/12/2009 |
| Q: check those as u// said thay check out good. with my ome metet befoe i check any thing meter shows o ... A: James, to first confirm that the cold start problem is fuel, spray a little starting fluid ... | |
| 85 sj6 | 12/11/2009 |
| Q: check those as u// said thay check out good. with my ome metet befoe i check any thing meter shows o ... A: James, I don't understand what you are saying. "i hook thermotime switch it go to fully to right ... | |
| 85 jag sj6 | 12/9/2009 |
| Q: i have a 85 jag sj6 hard to start when cold after it warm up ron fine i have change the cold start ... A: The cold start valve/injector is not operated by a relay. It is operated by a thermotime switch in ... | |
| oxygen sensor | 12/9/2009 |
| Q: on my 1985 jaguar xj6 my oxygen sensor light came on what does that mean? A: If you have the service interval light on you need to reset the light by a button on the counter ... | |
| 1987 XJS V12 lacks power when floored | 12/5/2009 |
| Q: I have a 1987 xjs V12 which runs well, but lacks quick acceleration when overtaking or trying to ... A: A lack of good acceleration can be one or more of a thousand things so you need to first confirm ... | |
| 69 USA E type Stromberg 175 CD2SE | 11/21/2009 |
| Q: I have taken out and refitted the brass jet assemblies which fit into the bottom of the float ... A: The CD-2SE Stromberg carburetor had fixed jets. (not removable)If you are talking about the tube ... | |
| 1970 E-type will not start | 11/11/2009 |
| Q: 1970 Jaguar E-type 4.2 with 2 Strombergs, 102K miles. I have owned this Jag for 7 years and have had ... A: Since you have checked spark it is most likely fuel, so you need to test that by spraying a little ... | |
| cooling fan | 11/6/2009 |
| Q: i want to know if a 1985 jaguar vanden plas 4.2 liter engine has two cooling fans? ANSWER: Hi ... A: William, the electric fan/s don't come on unless the engine is quite hot. Mine has only come on once ... | |
| 1984 XJ6 gas tank overfills when switched | 11/3/2009 |
| Q: When the button is pushed to switch to the right tank, the guage shows below empty. The tank is full ... A: John, there are only two wires that have anything to do with the fuel tank sending unit. A light ... | |
| seats | 11/2/2009 |
| Q: where do the bolts and spacers go to mount the left front seat in my 1986 xj6? A: As I remember the spacers held the seat frame up a little so that the frame was not down on the ... | |
| 1985 Jag XJ6 Series 3 Here's my test findings.. | 11/2/2009 |
| Q: It's Marie, I am the one that asked you about the misfire and that it bogs out at acceleration. ... A: The fuel pressure should be measured from a "T" put in the fuel line just before the fuel rail and ... | |
| 1974Jaguar XJ6L series 2 | 10/31/2009 |
| Q: I have a 1974 Jaguar XJ6-L series 2 there's a "knocking sound in the engine.It only happens when ... A: 83K miles is low mileage for a Jaguar and is not normally a mileage that would need an overhaul (if ... | |
| Jaguar Xj6 series 1 1972 | 10/29/2009 |
| Q: I am interested in purchasing a Jaguar Xj6 series 1 (1972). For what mechanical issues should I be ... A: My first inclination was to say "all issues". I love the XJ-6 Jag as I have 5 of them (only 2 run) I ... | |
| E.TYPE window washer jet's | 10/28/2009 |
| Q: i am currently re-spraying an E.TYPE and can't see how to remove the washer jet's. do i have to ... A: It has been many years since I did anything to an E type washer nozzles but I think you have to ... | |
| fuel pumps on 1976 xj12l | 10/28/2009 |
| Q: Haven't run car in two + years and it isn't getting fuel to filter. Is there a fuse/relay for the ... A: The series II XJ-12 only has one fuel pump and the two relays controlling the fuel pump are located ... | |
| 84 xj6 Horn beeps when I brake | 10/28/2009 |
| Q: Yesterday a local mechanic spent the day working on my 84 xj6. The problems he looked at were the ... A: Yes, as you obviously have short in the horn circuit and the only way I know of to find a short in a ... | |
| Car died and mechanic taking me to the cleaners! | 10/26/2009 |
| Q: I have a 2001 Jaguar S-type. I see your expertise is in older models, but if you have anything at ... A: Sorry to hear about what you have fallen into. My experience with Jaguars ended with the 1987 ... | |
| 1985 xj6 overvoltage reading | 10/24/2009 |
| Q: When the car is running the battery voltage gauge reads in the high red zone, (about 18v). With the ... A: This is easy to test. Just put your volt meter across the battery and read battery voltage (12.5+). ... | |
| 1985 Jag XJ6 Series 3 Here's my test findings.. | 10/22/2009 |
| Q: It's Marie, I am the one that asked you about the misfire and that it bogs out at acceleration. ... A: The timing light test is a sure test that you are loosing ignition. Even though your fuel pressure ... | |
| won't start | 10/22/2009 |
| Q: I have a 1985 xj6 Driving to work today at red light car fell dead at light it start but would not ... A: There are screws up from under the plastic cover to loosen and remove the plastic cover. Be careful ... | |
| 1985 JAG XJ6 Series 3 | 10/19/2009 |
| Q: My car Starts fine, runs ok cold, but when it warms up a bit it start to bog out and misfire when I ... A: You said you think it is a fire problem. Did you put the timing light on the coil wire and run the ... | |
| 1984 XJ6 gas tank overfills when switched | 10/14/2009 |
| Q: When the button is pushed to switch to the right tank, the guage shows below empty. The tank is full ... A: All of the XJ=6 with the two tanks use a switching valve in the trunk to draw from which ever tank ... | |
| won't start | 10/14/2009 |
| Q: I have a 1985 xj6 Driving to work today at red light car fell dead at light it start but would not ... A: When you say "Won't start" do you mean the starter don't turn the engine over or that it spins the ... | |
| injectors | 10/6/2009 |
| Q: Howard everything seems to check out the noid light flashes and car starts with starting fluid ... A: Yes, it does sound like your injectors are seized up and I have seen many but never seen all six on ... | |
| injectors | 10/5/2009 |
| Q: Howard everything seems to check out the noid light flashes and car starts with starting fluid ... A: I guess it is possible to have six bad injectors at once but I never seen it before. Since you have ... | |
| jag not starting | 10/5/2009 |
| Q: bought my first car today. a 1975 xj6 jaguar it was running smooth on the ride home however when i ... A: It could be many things including battery, starter motor, solenoid, relay or even wiring. The only ... | |
| bad injectors | 10/3/2009 |
| Q: My 86 xj6 yesterday I tested everything and ended up pulling the injectors because they were not ... A: On a Jaguar #1 is at the back and #6 is at the front. But it does not matter you can call the front ... | |
| bad injectors | 10/3/2009 |
| Q: My 86 xj6 yesterday I tested everything and ended up pulling the injectors because they were not ... A: The series III XJ-6 has the Bosch "L" Jetronic injection system and the airflow meter is what ... | |
| Jag xj6 | 10/3/2009 |
| Q: 1985 jaguar xj6 (series 3) Hello Howard, Here's my problem, car runs great in the drive way, jack up ... A: If you have set ignition timing to specs it needs to be separated between a fuel problem or an ... | |
| bad injectors | 10/2/2009 |
| Q: My 86 xj6 yesterday I tested everything and ended up pulling the injectors because they were not ... A: Rick, if the noid light flashes then that proves the power is there and the ECU is triggering the ... | |
| 1987 XJ6 Jaguar | 10/2/2009 |
| Q: What causes oil to come up around the spark plugs when the car is running? There is oil setting on ... A: To start with, any plug that has oil seeping around it means that spark plug is loose or missing ... | |
| XKE S3 New Solid State Fuel Pump overheat | 9/30/2009 |
| Q: In my 1974 XKE S3 V-12 the SU double fuel pump has been replaced with a new solid state double fuel ... A: Your diagnosis "may be" correct but you are doing a lot of assuming. When I worked in Jag ... | |
| bad injectors | 9/29/2009 |
| Q: My 86 xj6 yesterday I tested everything and ended up pulling the injectors because they were not ... A: You can't test the injector signal that way. The fact that you see 12v on one side is an indication ... | |
| Starting Series III | 9/27/2009 |
| Q: We have a 1985 Series III Vanden Plas that has been parked in the garage and has not been started or ... A: If it has not run in several years there are several things that need to be done. You should change ... | |
| gauges | 9/22/2009 |
| Q: i have a 1981 xj6 with chevy 350 and the gauges work intermittenly how do i fix them? A: That depends on what is wrong. You first need a wiring diagram of the instruments to trace down any ... | |
| no start | 9/20/2009 |
| Q: there is no spark in the number one plug what do i need to replace A: You should not replace anything until you find what is wrong. First, what kind of car is this? Also, ... | |
| defroster/heater blower speed | 9/17/2009 |
| Q: I have a 1985 XJ6 Vanden Plas. Recently the blower stopped working on the high speed setting, not ... A: The diagram and the locator are up on my web site. Go to, http://mg-tri-jag.net/JagACEle11x1.jpg for ... | |
| defroster/heater blower speed | 9/17/2009 |
| Q: I have a 1985 XJ6 Vanden Plas. Recently the blower stopped working on the high speed setting, not ... A: The solenoid with the pink and black wires next to the large relay only operates a blending air door ... | |
| 1986 jaguar warms then cuts off | 9/14/2009 |
| Q: 1986 jaguar warms then cuts off. runs for about 10-15mins then dies. after it sits for a while it ... A: Your symptom narrows the problem down to only a thousand possibles so you need to so some testing ... | |
| Car won't Start | 9/14/2009 |
| Q: My 85 Jaguar xj6 has power when I turn the ignition, but neither the solenoid or starter is ... A: The starter relay is on the firewall under the hood. It is the larger metal cased relay. remove the ... | |
| starting problems Jaguar XJ6 serie III | 9/14/2009 |
| Q: I,m a (Dutch) proud owner of a Jaguar XJ6 serie III built in March 1981. The problems is that the ... A: The relays are, the metal relay is the starter relay and the red one is not a relay, it is a diode ... | |
| New engine No start | 9/10/2009 |
| Q: I have a 1986 XJ6 obviously a SIII. I wen through quite a bit of diagnostics and have a few ... A: Just remove the White w/red tracer wire off of the starter relay and jump it to a hot jumper from ... | |
| New engine No start | 9/10/2009 |
| Q: I have a 1986 XJ6 obviously a SIII. I wen through quite a bit of diagnostics and have a few ... A: I thought I just answered this but here it is again if it didn't go. You are skipping things and ... | |
| 1973 xj6 ignition lock removal | 9/7/2009 |
| Q: I have a 1973 Jaguar XJ6, and there is a problem with the ignition lock assembly, do you know the ... A: It has been a long time since I worked on a 73 Jag but I think the switch comes out the same way a ... | |
| windows | 9/1/2009 |
| Q: why is my center console on my 1985 xj6 getting hot when I have the windows down or cracked open. ... A: I don't have a clue why it is getting hot. You might remove the armrest lid and box tray out and ... | |
| Bad Door lock solenoid? | 8/31/2009 |
| Q: This might be similar to a question you've already addressed, but my key won't unlock the driver's ... A: There is one thermal breaker just to the right of the Aux fuse panel. Also there are two relays, one ... | |
| Auto repair | 8/29/2009 |
| Q: First of all i want to thank you for taking the time to answer my question, i know for sure that ... A: First thing you need is a service manual. Then look very closely for any fuel leaks then check the ... | |
| 1984 xjs he no injector pulse | 8/27/2009 |
| Q: I have proper fuel pressure 38 psi at filter,have real strong and consistent spark(passes ST-125 ... A: I believe the injection system will trigger (ground in groups)injectors when the ECU sees an ... | |
| XJS V12 Head Gasket and Shift Cable | 8/27/2009 |
| Q: I could use your help on 2 problems that came at the same time. I am short of cash and want to ... A: It does sound like a head gasket leak, but you should have either the dye put in the radiator or ... | |
| 1987 Jaguar xJ6 | 8/27/2009 |
| Q: This car has 113,000 miles and runs like a top. I was told by a mechanic that since it was a unibody ... A: That depends on how much rust and how much you like the car. It in no way matters what I think, it ... | |
| 85 XJ6 passenger's front window won't roll down | 8/24/2009 |
| Q: My '85 XJ6 passenger's front side window will not operate. All the other windows are working fine as ... A: It sounds like you did all of the preliminary tests and have narrowed the problem down to the door ... | |
| Heat mode on AC | 8/23/2009 |
| Q: I hace a Jag 85, XJ6. Does the system require the outside temp of the car and the inside temp to be ... A: You are correct about the system being complex. The heat is much easier to diagnose. When you have ... | |
| 1983 xjs HE | 8/20/2009 |
| Q: I recently purchased a used jag for cheap. The owner told me that it was steaming from the hood when ... A: I would get a Bentley or a Haynes manual and start by removing all the spark plugs and put a little ... | |
| Jag XJ6 Radio Wiring | 8/19/2009 |
| Q: I have a 85 xj6 with a AJ8600 radio. It is broken and I want to replace it with a retro looking ... A: The Ser III Jag had several different radios but I have no reference to any radio number. However, ... | |
| 1976 series 2 Carbs/aeu | 8/16/2009 |
| Q: Had problem with auto enrichment unit so have swapped Jag manifold & carburettas over to Daimler of ... A: If you are talking about the system sometimes called a "Third carburetor" with an electric solenoid ... | |
| xj6 | 8/15/2009 |
| Q: I Have a 1983 xj6.I put another engine in it and now the spark plugs are white/Not getting hot so ... A: That is possible but a hundred other things are also possible. Try spraying a little propane from a ... | |
| Jag XJ 12 1986 | 8/14/2009 |
| Q: When the car starts cold it starts without problems. Once vehicle warms up and is driven for 1/2 hr, ... A: While it is true that it could be a fuel pump, it is also true that it can be one or more of a ... | |
| IT runs but dies on the road | 8/13/2009 |
| Q: I have 1984 jag xj6,VDP series lll MY DAD JUMP MY FUEL PUMP BY A SMALL CONNECTOR BYPASSING THE FUEL ... A: Brandon, it is no use buying parts until you know what is wrong. Chances are that you will run out ... | |
| 1987 xj6 blowing smoke | 8/7/2009 |
| Q: I have a 1987 xj6 Vanden Plas 4.2. The car run good (has a slight miss when cold) and doesn't burn ... A: Any smoke from under the hood can be dangerous and you must determine where it is coming from. Raise ... | |
| 1987 xjs vacuum | 8/6/2009 |
| Q: I seem to have poor vacuum. At idle it shows about 7psi. When revved up and released it goes to a ... A: If it came to me like that I would first pinch and/or block off all vacuum lines, connections etc ... | |
| Color code vacuum line size? | 8/6/2009 |
| Q: That vacuum size I'm asking about is for a 85 xj6, series 3. And is there a vacuum chart for the ... A: I never found a vacuum diagram for the Series III Jag but did get this one from a friend but the ... | |
| 1986 XJ6 4.2L | 8/6/2009 |
| Q: I just purchased a 86 XJ6. The engine runs very rough and there is a lot of smoke coming out of the ... A: Go to my web site and copy the window diagram and you can see how it is wired and thus test each ... | |
| Seized engine | 7/29/2009 |
| Q: I understand the crank does not turn easily but I used a 3/4 inch breaker bar and a cheater pipe and ... A: Working in dealerships we would at times get a locked up engine and I always found that if it was ... | |
| XJ6 wont start | 7/28/2009 |
| Q: I have a Series 3 XJ6 and it wont start, the negative battery terminal gets hot when I hold the key. ... A: I wouldn't go as far as to think about removing anything yet until you know what is wrong. The crank ... | |
| XJ6 wont start | 7/28/2009 |
| Q: I have a Series 3 XJ6 and it wont start, the negative battery terminal gets hot when I hold the key. ... A: To bypass the solenoid just disconnect the (+) battery cable first, then on the solenoid move the ... | |
| XJ6 wont start | 7/27/2009 |
| Q: I have a Series 3 XJ6 and it wont start, the negative battery terminal gets hot when I hold the key. ... A: When a battery post gets hot it is a clear indication of resistance and a poor connection. That must ... | |
| LOSS OF ANTIFREEZE | 7/26/2009 |
| Q: I own a 1987 Jaguar xjsc v-12 with only 35000 original miles on it. This car has not been driven ... A: Even though many cars can sit stationary running for hours, NONE were designed to do that. If you ... | |
| 86 XJ6 Wont Start | 7/25/2009 |
| Q: I have a Series 3 86 XJ6 and today the car decided not to start. When I turn the key I have all ... A: Matt, when your lights dim when you hit the starter and the starter don't turn the engine, that ... | |
| Follow up question | 7/24/2009 |
| Q: I greatly appreciate your last answer about my 85 xj6 A/C, Howard. Although that information is what ... A: Sorry Cody I don't remember how much it takes of R12, I think it was two or three 1 lb cans of R12, ... | |
| 85 xj6 ac factory charge | 7/23/2009 |
| Q: I have an 85 xj6 that I bought off my dad. He had taken it up to the local Ford dealership to get ... A: The AC runs all the time that AC is on or the heat is on. Most of the AC system is GM not Ford but ... | |
| Auto ttransmission | 7/23/2009 |
| Q: I have 1967 XKE 4.2, 2+2 that won't shift into 3rd, 1st and 2nd is smooth but won't go to third, the ... A: It is a Borg Warner 8 and most any automatic transmission shop should be able to rebuild it. They ... | |
| 86 XJ6 Wont Start | 7/23/2009 |
| Q: I have a Series 3 86 XJ6 and today the car decided not to start. When I turn the key I have all ... A: This can be caused by several things. High resistance in the starter circuit (battery to solenoid to ... | |
| gearbox | 7/20/2009 |
| Q: I have a 1985 jaguar xj6 4.2. When I put it into drive, it will not move up the gears into 2nd or ... A: Since you are able to select drive and reverse but it just won't automatically up shift, it is not a ... | |
| Temperature Gauge - Driving me crazy!! | 7/18/2009 |
| Q: thermostat, water pump, fan clutch, therm o switch and the sensor that controls the gauge in the ... A: Smelling or listening are of no use, so you need to run the tests I outlined. You need to start ... | |
| 85 s-3 wont start | 7/16/2009 |
| Q: it does however have, crank good blue spark fuel to the injectors BUT NOT INTO THE CYLINDERS power ... A: If you are able to spray fuel into the intake and it fires off and you have no light from a noid ... | |
| 85 s-3 wont start | 7/15/2009 |
| Q: it does however have, crank good blue spark fuel to the injectors BUT NOT INTO THE CYLINDERS power ... A: You say you have a pulse at the injectors. Did you check them with a "Noid" light and are the ... | |
| 1986 4.2 L Sovereign power windows all stopped working | 7/14/2009 |
| Q: where would I find the thermal breaker that controls the power windows?? Does one control all four? ... A: First check to see that the master switch has not been turned off. If that is on, then go to the aux ... | |
| test thermal breakers / relay (windows) | 7/14/2009 |
| Q: 1st, thank you for all the help you've provided others - I was able to track down part of my ... A: As for the relay, I have at times used generic relays to replace OEM relays. All you need to do is ... | |
| test thermal breakers / relay (windows) | 7/13/2009 |
| Q: 1st, thank you for all the help you've provided others - I was able to track down part of my ... A: The thermal breakers are only two wires and they either conduct current or they don't. So all you ... | |
| 4.2 or V12 engine rebuild | 7/12/2009 |
| Q: I am an industrial mechanic with some background in british car repair. I have a 2 thousand pound ... A: Go to any truck or diesel parts supplier and ask for the additive to put in your radiator that stops ... | |
| 4.2 or V12 engine rebuild | 7/11/2009 |
| Q: I am an industrial mechanic with some background in british car repair. I have a 2 thousand pound ... A: I have been a jaguar mechanic since 1960 and I never ran into a cracked block on a Jag. There could ... | |
| SU auxiliary enrichment device | 7/8/2009 |
| Q: I have a 1966 Jaguer 3.7S with 2 HD-6 carburetors. The choke is comprised by a third smaller ... A: When the solenoid is activated it lifts the flat valve off it's seat allowing air to travel through ... | |
| e-type rough idle | 7/6/2009 |
| Q: I have a 1969 e-type 4.2L with twin strombergs. The car runs great for about 10 miles but then ... A: Your symptom narrows the problem down to only a thousand possible causes. The only way to find the ... | |
| 1970 E-Type Rough Idle | 7/3/2009 |
| Q: I have rebuilt the engine of this '70 E-type. New pistons, rings, valves, seats, guides, springs, ... A: When you say the Stromberg carbs are not adjustable, do you mean they are the Strombergs that have ... | |
| front door locks, frozen door | 7/3/2009 |
| Q: the key does not turn the driver door lock, so the automatic door locks do not work. The driver's ... A: George, you are going to have to remove the door panel and look at the lock and links to the lock to ... | |
| Adjusting Choke on 4.2 XK engine | 6/29/2009 |
| Q: My'67 E-type coupe had a recent engine rebuild. Runs terrifically. Over the past couple of months ... A: The three "HD" type SU carburetors on the 67 "E type" have the jet adjusting screw mounted down low ... | |
| 1987 xj6 | 6/25/2009 |
| Q: where is the fuel pump located. we opened the flap on the airflow meter,the relay engages but we ... A: You first have to determine if the outer wheel bearings are locked up or is it the brakes that are ... | |
| how to replace evaporator on 74 jag xj6 | 6/23/2009 |
| Q: how to replace evaporator on 74 xj6 ANSWER: Hi Dodson, Not good news, first get a service manual ... A: It requires EVERYTHING to be removed so even if you did get a manual that didn't go into much detail ... | |
| how to replace evaporator on 74 jag xj6 | 6/22/2009 |
| Q: how to replace evaporator on 74 xj6 A: Not good news, first get a service manual because you have to remove the dash and console and take ... | |
| 86 xjs speedometer gas guage | 6/22/2009 |
| Q: 86 XJS speedometer, and gas guage are dead. Tach works fine A: If the tach is working then the fuse powering the fuel gauge and speedo is working. Check the trip ... | |
| leaky fuel pump | 6/22/2009 |
| Q: I noticed a strong fuel smell and found it to be the fuel pump in the trunk on my 1983 xj6. It is ... A: Over the years I have seen some Bosch pumps fail in that manner but not many. Very few in the "L" ... | |
| window power | 6/20/2009 |
| Q: Howard, Before I kill something,I have a 1985 Jaguar In pristine condition,, some of the windows ... A: You don't need to remove the door panel to do your testing of the rear passenger's window. Just look ... | |
| window power | 6/19/2009 |
| Q: Howard, Before I kill something,I have a 1985 Jaguar In pristine condition,, some of the windows ... A: Nice looking car, I put the window diagram up on my web site for you. ... | |
| Jaguar XKE gearbox | 6/19/2009 |
| Q: took a ride last night and things are working as they should. Do you have experience with Jaguar ... A: The gearbox should not enough end play in the mainshaft gears to cause a noise when accelerating and ... | |
| xjs windows,not working,voltage gauge,l/h mirror also not working | 6/15/2009 |
| Q: sorry but it is a 1988 3.6 xjs so understand if you cannot help - r/h drive car all of the above not ... A: I don't know if this diagram is the same as a UK version or not but I put the diagram of the window ... | |
| 73 xke jajuar | 6/14/2009 |
| Q: cooling fan relay wireing A: Fuse #6 pin #4 supplies power to the fan relay by a green wire. The relay is mounted just to the ... | |
| window wiring | 6/9/2009 |
| Q: I purchased a 1975 xj6c with a chev conversion. The wiring for the windows are all disconneted and ... A: John, go on line and look up Engel Imports, John's Cars, & Terry's Jaguar to name a few that I have ... | |
| no heat | 6/8/2009 |
| Q: I have an 86 S3 XJ6. There is no heat coming out when I turn the dial to 85. The heater valve on the ... A: The heating / AC system on the series III Jag is climate control system and is very complex system ... | |
| 1985 Vanden Plas | 6/8/2009 |
| Q: How do I remove the console plate where the fuel transfer switch is? I need to replace the FTS. ... A: You need to remove the radio face plate and the recessed nuts under the heater/AC control knobs to ... | |
| window wiring | 6/8/2009 |
| Q: I purchased a 1975 xj6c with a chev conversion. The wiring for the windows are all disconneted and ... A: I don't have a wiring diagram of the early XJ-6 but do have one for the later ser. III XJ-6 which ... | |
| 1973 xj6 | 6/3/2009 |
| Q: howard,great job thanks. I have a 73 xj6 4speed manual trans. shipped the car in from Italy. sold ... A: Nice looking car, it must have been garage kept or a restoration. I have no experience with the ... | |
| 1985 Jag 4.2 XJ6 Overcharging / Fuel in Oil | 5/15/2009 |
| Q: First, the volt gauge runs high in the red when the vehicle is started from cold then drops down ... A: The alternator circuit is simple and you must do a voltage drop test on each wire including the ... | |
| 1987 xj6 | 5/11/2009 |
| Q: sorry to do this again' but your answer did not post!my 87 jag starts fine but it revs up and down ... A: William, You need to run a compression test, test the fuel pressure and monitor the ignition. ... | |
| 1985 Jaguar XJ6 4.2 starting problems | 5/10/2009 |
| Q: My Jaguar will turn over, catch, and immediately die. I have changed the fuel filter and the spark ... A: It is never a useful idea to try to guess what is wrong. The only way to locate a problem is to ... | |
| xj6 1987 | 5/10/2009 |
| Q: car starts fine with one try/engine idles up and down in park/when i'm driving at speed starts ... A: You symptom is useless info as it does not tell you anything other than something is wrong. You ... | |
| removing console armrest lid on 87 xj6 | 5/10/2009 |
| Q: i have removed all screws that i can see and the ashtray assembly and the console box will not ... A: To remove the armrest lid, all you need to do is remove the two chrome screws in the hinge and the ... | |
| alternator | 5/10/2009 |
| Q: I Inherited a 1983 xj6. I have 2 large brown wires coming out of the firewall. One is hooked to the ... A: Sid, you need a wiring diagram and then check the car to see what don't work. Then trace that ... | |
| 83 xjs wiper motor | 5/10/2009 |
| Q: I would like to know how to bench test the wiper motor. Is the 5 wire lucas unit I have a 12 volt ... A: Sorry Bill, I never worked out a bench test of the wiper motor other than to bypass the cancel ... | |
| 1975 jaguar xj12l | 5/5/2009 |
| Q: i picked up this car for next to nothing its a good straight car but it had electrical problems i ... A: If your mechanic has not been able to get the turn signals working in a year and a half, you need to ... | |
| 1985 series 3 4.2 | 5/3/2009 |
| Q: Brakes work fine when stopping at lights etc but,I lose the pedal pressure when waiting for green ... A: The symptom you out line is of a bad master cylinder. (If you are not loosing fluid) Sometimes it is ... | |
| 1986 Jaguar XJSC Windows Do Not Work | 4/29/2009 |
| Q: Where is the fuse for the power windows on a 1986 XJSC? I checked the fuses under the driver's side ... A: The power windows don't have a fuse but does have a Thermal Breaker mounted on the far lower right ... | |
| 1973 jaguar xke v12 guages & tach | 4/22/2009 |
| Q: The first time in 25 years of ownership I have a new problem--ALL gauges & the tachometer are not ... A: I don't have a diagram for that car but have worked on them in the past and as I remember they ... | |
| jaguar parts | 4/19/2009 |
| Q: and was wondering if you new a good reliable reasonable place to buy jag parts I own a 1985 jaguar ... A: There are several Jaguar parts suppliers that work on the net that are reputable but you may have to ... | |
| Howard M. Fitzcharles III | 4/19/2009 |
| Q: Howard The procedure you explained on 10.30.08 regarding tappet shim changing, does that apply to ... A: Of course you have no compression. You should have adjusted the valves (changed pads (shims)before ... | |
| 1986 Jag XJ6 - oil pressure | 4/17/2009 |
| Q: Me again..I brought my stored jag of 7 years to get an oil change. I had been driving it for a few ... A: Yes, the thin oil can make the oil pressure low, however the idiot light and the gauge are electric ... | |
| Hess & Eisnhardt XJS..V12 1897 Fuel system | 4/12/2009 |
| Q: Howard I will try what you recommended, you asked for the VIN for fuel system ... A: Sorry Lee, fuel injection systems are complex and not simple. While symptoms some times lead a ... | |
| 87 XJS 5.3 hess & Eisnhardt | 4/11/2009 |
| Q: Started stalling, now runs for ten seconds, pump not running, remover and tested, pump runs but not ... A: There are three diagrams of the fuel pump system with minor differences so I need a Vin # to get you ... | |
| Radio Wiring Diagram/Color | 4/10/2009 |
| Q: I have a 1987 XJ series & I cannot figure out the wire colors to match to the new radio I am ... A: Go to my web site and you can copy the diagram of the 87 series III radio wiring. The speaker wires ... | |
| Jaguar 4.2 manual transmission | 4/2/2009 |
| Q: I have a 4.2 trans. I have removed the front haft of the mainshaft(clutch rides on). How can I ... A: Bob, when you say "So the mainshaft can be lifted out of the top" You must have a 4 speed box not a ... | |
| Jaguar 4.2 manual transmission | 4/2/2009 |
| Q: I have a 4.2 trans. I have removed the front haft of the mainshaft(clutch rides on). How can I ... A: You need to remove the rear flange, speedometer drive gear and remove the tailshaft housing which ... | |
| '74 XJ12L Series 2 window lift problem | 4/1/2009 |
| Q: My car recently developed a fault where the passenger side, and rear window lifts have stopped ... A: Jim, my diagram shows one common ground wire and one power wire. According to my diagram if the ... | |
| '74 XJ12L Series 2 engine misfiring then cutting out when hot | 3/31/2009 |
| Q: This car is fitted with a lumenition ignition system, and has been quite reliable up until now. The ... A: I never found it to be of any use at all guessing what is wrong when an engine stops running. All ... | |
| '74 XJ12L Series 2 window lift problem | 3/31/2009 |
| Q: My car recently developed a fault where the passenger side, and rear window lifts have stopped ... A: Jim, the window lift motors are just a two wire motors and the switch just reverses the polarity for ... | |
| 1985 Jaguar xj6 - car starts cold then shuts off | 3/30/2009 |
| Q: I had a previous question which was answered on 3/19/09, which was a backfire problem. We replaced ... A: It will be very easy to run out of money by replacing parts until you find what is wrong. You need ... | |
| 83 jaguar xj6 boot/trunk | 3/28/2009 |
| Q: I locked my boot/trunk and don't have a key to open it. What can I do? A: The door key is the same key on series III XJ-6, so just remove a door lock tumbler and take it to a ... | |
| Jaguar XJ6 4.2 series 3 | 3/26/2009 |
| Q: I recently had a new alternator and battery fitted into my XJ6 4.2. Sometimes the battery indicator ... A: To start with, the ser III Jag had a odd problem from birth and that is that the car needs a "Deep ... | |
| Fuel Pump | 3/21/2009 |
| Q: After a year rebuilding the engine, one of the two fuel pumps on my '58 XK150S doesn't pump. I've ... A: Sorry Bill, I don't know of anyone that fixes bad solenoid coils. To tell you the truth I never ... | |
| Fuel Pump | 3/21/2009 |
| Q: After a year rebuilding the engine, one of the two fuel pumps on my '58 XK150S doesn't pump. I've ... A: The simplest way is to Just connect a 12v battery to the solenoid wire for a moment with the points ... | |
| 1976 Jaguar xj12 vacuum hoses | 3/21/2009 |
| Q: I have 4 colored vacuum hoses(red, blue, white, and green). I need to know what hose goes to what or ... A: I found two vacuum diagrams for the heating/AC system and put them up on my web site for you to ... | |
| 1985 Jaguar xj6 backfire air flow meter and Throttle switch | 3/19/2009 |
| Q: My boyfriend just acquired a 1985 Jaguar xj6, which has a few problems. He is having 2 problems, ... A: If the dash switch will not click into place he needs to replace that switch as there is no ... | |
| daimler double six | 3/15/2009 |
| Q: My 1978 v12 starts ok but when it gets up to temp stops, it will not restart until totally cold ... A: I am guessing that the V-12 Daimler is the Jag engine. For the engine (or any engine) to stop when ... | |
| 1985 xj6 evaporator coil | 3/9/2009 |
| Q: I would like to know how to remove the ac evaporator coil from a 1985 xj6. ANSWER: Hi Isaac, BLM in ... A: Isaac, I already told you that you have to remove the WHOLE dash, steering wheel and all. This is ... | |
| spark | 3/4/2009 |
| Q: I have an 87 vandon plas. I have replaced the fuel metering valve,coil, injectors,and the ign. ... A: How did you decide the battery was good? Do this, when it will not start connect up a another ... | |
| series III xj6 | 3/3/2009 |
| Q: The car runs, not well though. The Catalytic converter, will be glowing red after 5 to 8 minutes. ... A: A glowing CAT means it is receiving raw fuel. You may run out of money replacing parts before you ... | |
| xjs v12 5.3 1987 | 3/3/2009 |
| Q: my xjs has not been started for two years, i have put a brand new battery in as soon as i connect ... A: For the pump to run after the ign is turned off either the pump relay is stuck closed, or the main ... | |
| 1984 XJS idles then dies | 3/2/2009 |
| Q: 1984 Jaguar XJS wouldn't start after sitting for 3 years. After establishing spark (replaced ... A: Yes, both should pull the same amount of air. You need to pull a compression test on all 12 ... | |
| 84 Jag series 3 fuel problem or?? | 2/28/2009 |
| Q: Howard sounds like you are very knowlegeable about Jag series 3 so Here's my dilema. Have a 84 ... A: If it runs but dies when you put it in gear you need to check idle speed and if it is too low set it ... | |
| 1985 xj6 evaporator coil | 2/27/2009 |
| Q: I would like to know how to remove the ac evaporator coil from a 1985 xj6. A: BLM in their infinite wisdom made it so you would have to remove the whole dash and heater / AC box ... | |
| 84 Jag series 3 fuel problem or?? | 2/27/2009 |
| Q: Howard sounds like you are very knowlegeable about Jag series 3 so Here's my dilema. Have a 84 ... A: All injection systems operate at a specific pressure and it is very important so if you are going to ... | |
| 84 Jag series 3 fuel problem or?? | 2/26/2009 |
| Q: Howard sounds like you are very knowlegeable about Jag series 3 so Here's my dilema. Have a 84 ... A: Cliff, If it does not fire up at all now you need to see which is missing of the three items ... | |
| 1986 Jaguar XJ6 Injector problem | 2/24/2009 |
| Q: My Jag won't start, it took two days to fully die. I have spark to plugs, fuel rail is under ... A: There is a single bullet connector between the intake coolant rail and the cam cover about 6 to 8 ... | |
| Mechanics | 2/24/2009 |
| Q: I have just purchased a nice mark v jaguar and was wondering how to find a mechanic that knows these ... A: You need to first look in the yellow pages for a Jaguar dealer and any independent British car ... | |
| 1986 Jaguar XJ6 Injector problem | 2/23/2009 |
| Q: My Jag won't start, it took two days to fully die. I have spark to plugs, fuel rail is under ... A: You can't assume that is your problem. You must do some simple tests. First you say the cold start ... | |
| alternator light | 2/23/2009 |
| Q: I replaced my lucas laternator on a 1988 XJS V12 5.3 It seems to charge fine. I drove it around town ... A: I don't work on any Jag after 1987 but I happened to have a wiring diagram of the 88 XJ-S and I see ... | |
| 84 Jag series 3 fuel problem or?? | 2/23/2009 |
| Q: Howard sounds like you are very knowlegeable about Jag series 3 so Here's my dilema. Have a 84 ... A: After you do that you might consider using injector cleaner. It takes a long time to use the in-tank ... | |
| Radio Removel | 2/22/2009 |
| Q: I Am About To Replace The Radio In My 1985 XJ6 ... I Have Drilled Out The Two Rivets And The Player ... A: You have to remove the front panel first by removing the Heat/AC knobs then the recessed nuts and ... | |
| 84 Jag series 3 fuel problem or?? | 2/22/2009 |
| Q: Howard sounds like you are very knowlegeable about Jag series 3 so Here's my dilema. Have a 84 ... A: Look at the drain plugs to see if the small drain plug is inserted in a large plug like some of the ... | |
| 1984 XJ6 Will not start. | 2/22/2009 |
| Q: My 84 XJ6 will not start.. I have tested the fuel pump, good spark, tested relays on firewall ... A: If you mean the injector resistor pack all you need to do is check for power on one side of the ... | |
| fuel leak | 2/19/2009 |
| Q: 1983 when I open the right fuel cover the gas sprays out and goes every where what can I do? A: The series III XJ-6 with two tanks has a fuel return system that is operated by the dash switch that ... | |
| 510 bhp v8 direct injection | 2/16/2009 |
| Q: !!)? If so - how does the system actually work? I read in an article that they avoid the cylinder ... A: I did design and make the valves as I could not find a valve in production as it needed to be in a ... | |
| 510 bhp v8 direct injection | 2/16/2009 |
| Q: !!)? If so - how does the system actually work? I read in an article that they avoid the cylinder ... A: If you are talking about the corner joints at the top of the block, they are one way valves so ... | |
| 510 bhp v8 direct injection | 2/15/2009 |
| Q: !!)? If so - how does the system actually work? I read in an article that they avoid the cylinder ... A: The direct injected model is not out yet. I have not seen any info about it other than word is that ... | |
| dash guages | 2/15/2009 |
| Q: my dash guages quite working with the exception of the tach. 1985 xjs.. have checked a plug ... A: All of the instruments are powered by one wire (green) from the #4 fuse in the main fuse panel. All ... | |
| Rough Idle | 2/13/2009 |
| Q: I have an Australian delivered 1986 XJ12. Regardless of running 91 or 98 octane fuel it still idles ... A: The octane of the fuel is not going to correct a miss or rough idle in an engine. You need to have ... | |
| AC | 2/11/2009 |
| Q: 1985 xj6 the condenser ac is cracked how do I remove condenser. Thanks A: If you are in the US you need to take it to a facility that can evacuate the system as it is against ... | |
| Can you help me fix my Jaguar | 2/3/2009 |
| Q: my 1985 jaguar 4.2 petrol was idle for 4 years. i tried starting it but have no compression in ... A: Unlikely head gasket nor rings. Most likely is valves. Pull #1 plug and put the piston at TDC on the ... | |
| convertable top | 2/3/2009 |
| Q: 87 jaguar xjs v12 convertible. how to operate the top manually and where is the fuse for the ... A: Jaguar never made a convertible in 1987 so I can not give you any info on them. There were some ... | |
| No start/No electrical | 1/16/2009 |
| Q: I went out to start my Jag tonight after work and the following happened: -I put the key in the ... A: I doubt the cold had anything to do with the problem. When you have no power at all then you need ... | |
| Rear Defrost/Windshield Washer Fluid - 1985 XJ6VDP | 1/15/2009 |
| Q: I was hoping you could help me with fixing my rear defrost on my '85 XJ6. When I push the button ... A: The fact that the light comes on indicates the fuse and the relay are good so you need to take a 12v ... | |
| 87jag | 1/15/2009 |
| Q: 87xj6(4.2)little bit hard to start after siting for a few hours or over night. A: First thing to do is to spray starter fluid or something like WD-40 into the intake when it is hard ... | |
| 85 Jaguar xj6 | 1/12/2009 |
| Q: I have a intermittent speedometer. I read what you had told another person, the problem is not with ... A: I have removed them from the car while the trans was in place but due to the monkey puzzle trans ... | |
| I GOT IT TO STARTED BUT!!!!! | 1/7/2009 |
| Q: I have 1984 jag xj6,VDP series lll MY DAD JUMP MY FUEL PUMP BY A SMALL CONNECTOR BYPASSING THE FUEL ... A: When we would get a car like that there is a quick preliminary test. Remove either one of the ... | |
| Dashboard lights | 1/5/2009 |
| Q: Recently my dashboard lights stopped working. I've checked all of the fuses and they are all ok. ... A: All panel lights are powered by one fuse. (fuse #8 in the main fuse panel) The glove box light is ... | |
| 1989 Jaguar XJS V12 | 1/5/2009 |
| Q: Car overheated and shut down. Car does still start however makes a tapping sound towards the driver ... A: Even though I have no experience nor info on any Jaguar after the 1987 XJ-6 I can tell you that you ... | |
| 85 XJ-6 Won't start | 1/3/2009 |
| Q: Is there an easy way to tell whether it's related to the battery instead of the starter or fuel ... A: Preliminary tests are, To test the fuel pump circuit just remove the air filter and manually open ... | |
| Jaguar Engine Rebuild | 1/3/2009 |
| Q: I live in Brentwood and have several Jaguar projects going on at this time. My top priority ... A: I would have been interested 20 years ago but I am retired now and I have too many projects of my ... | |
| I GOT IT TO STARTED BUT!!!!! | 12/31/2008 |
| Q: I have 1984 jag xj6,VDP series lll MY DAD JUMP MY FUEL PUMP BY A SMALL CONNECTOR BYPASSING THE FUEL ... A: I had a good Christmas but no fireplace. Glad to hear you are making headway. That battery should ... | |
| 4.2 oil bypass valve | 12/29/2008 |
| Q: I have a 1970 FHC 4.2 that I finnaly got back to. While installing a spin on oil filter, I pulled ... A: I don't know which valve you are talking about. So first we need to get together on terminology. The ... | |
| remove and repair tire | 12/28/2008 |
| Q: I store a 69 XKE winter months in Minnesota. I now have a flat tire on the right front. do You have ... A: There are no tricks that I know of as it is just a nut and many times required a large heavy hammer. ... | |
| 87 XJ6 Repair Manual\Radio Installation | 12/28/2008 |
| Q: How do you remove the Radio on this model? In my search to find a repair manual to help me (after ... A: Sorry for the delay I thought I answered this one but it must not have gone through. All series III ... | |
| remove and repair tire | 12/27/2008 |
| Q: I store a 69 XKE winter months in Minnesota. I now have a flat tire on the right front. do You have ... A: Don, are you sure you are trying to unscrew it in the correct direction because they unscrew in ... | |
| Heater Core | 12/27/2008 |
| Q: 1985 xj6 how do you replace the heater core or remove it thanks. IJJ A: If you did what the factory would have you do you would have to remove the whole Heat/AC box, but ... | |
| windsheid | 12/26/2008 |
| Q: how do you remove windsheid fliud bottle from 1985 xj6 A: The WS washer fluid container normally just lifts up out of the cradle it sits in other than the ... | |
| oil warning light | 12/26/2008 |
| Q: On my XJ6 S3 - the dash oil warning light started to come on the other day. Checked the levels, ... A: The oil warning light and the oil pressure gauge sending units are on the engine block plugged ... | |
| I CAN GET FIRE | 12/23/2008 |
| Q: I have 1984 jag xj6,VDP series lll MY DAD JUMP MY FUEL PUMP BY A SMALL CONNECTOR BYPASSING THE FUEL ... A: The fuel pump does not run until the engine is turning so you need to connect it back up the way it ... | |
| I CAN GET FIRE | 12/23/2008 |
| Q: I have 1984 jag xj6,VDP series lll MY DAD JUMP MY FUEL PUMP BY A SMALL CONNECTOR BYPASSING THE FUEL ... A: You are going to have to slow down and clarify what you mean as I can't make out what you are ... | |
| Jaguar V12 XJS Flooding problems | 12/11/2008 |
| Q: we are hoping that you can help as we are having huge problems with our 1990 XJS. The car failed to ... A: Your car is out of my range of cars I have info on or any experience on but I do know that ... | |
| Jaguar V12 XJS Flooding problems | 12/10/2008 |
| Q: we are hoping that you can help as we are having huge problems with our 1990 XJS. The car failed to ... A: I have no experience nor info on any Jaguar after the 1987 XJ-6. However, on any kind of car that ... | |
| car repair | 12/9/2008 |
| Q: My 87 jag xj6 The battery keeps going dead after i turn car off. A: To determine if something is running it down or it is just a bad battery you need to do a couple of ... | |
| SU fuel pump and (tank)? | 11/30/2008 |
| Q: Can I use a NOS AZX1318 Pos. Ground fuel pump to replace an AZX1307 Neg. fuel pump for my 1970 ... A: I am not failure with the pump numbers so that don't do anything for me. Are these the in-tank ... | |
| 1987 xjsc jaguar 12 cylinder | 11/28/2008 |
| Q: We have this 1987 Jajuar with only 15k miles was starting fine was a little rough cold but ran fine ... A: If you have no spark you need to start testing for power to the coils and a pulse on the negative ... | |
| light 1,2 | 11/26/2008 |
| Q: I would like to check Light 1,2 switches for shorts or not working. I need help in how to remove ... A: The map light is powered by fuse #3 in the main fuse panel. This same fuse powers the interior ... | |
| 1974 Jaguar | 11/25/2008 |
| Q: How to open hood that won't unlatch ANSWER: What kind of jaguar, Ron? ---------- FOLLOW-UP ... A: First have someone push down hard on the rear corners of the hood while you pull on the hood ... | |
| Thermostat and stuck bolts | 11/24/2008 |
| Q: I have kind of a big problem, wondering if you could help. I went to replace my thermostat in my ... A: That was a common problem on the XJ-6 as water leaked past the gasket and into the bolt holes and ... | |
| XJS V-12 no-start | 11/23/2008 |
| Q: I was driving my 1987 XJS-C today and noticed the batt. voltage suddenly dropping off, and things ... A: I guaranty you will run out of money before fix it by plying with pieces (buying pieces). First you ... | |
| XJ6 - 1985 - speedometer pb | 11/21/2008 |
| Q: my 1985 XJ6 speedometer started to go wrong randomly and then eventually stopped. Mileage isn't ... A: You will hate yourself on this one. To get the speedo out you just push in and turn the speedo and ... | |
| 87 XJ6 Starts fine, dies in gear (part 5): | 11/18/2008 |
| Q: This is an update to my Jag woes ... A: 31/40 are good readings for fuel pressure. I don't understand the fuel cooler bit as that is the ... | |
| Radio Problems-85 XJ6 Series III | 11/11/2008 |
| Q: I've went through the steps you told me to on the radio. I have found the relay and fuses and ... A: Blake, you will never find your problem if you continue down the road your seem to want to go. Why ... | |
| Radio Problems-85 XJ6 Series III | 11/10/2008 |
| Q: I've went through the steps you told me to on the radio. I have found the relay and fuses and ... A: Blake, did you test the relay and fuse for power? Why are you looking for another place to run power ... | |
| 76 xj6 | 11/9/2008 |
| Q: what is the best way to check if my car is timed correctly and adjust if necessary A: Put a timing light on # 1 or # 6 plug wire and look at the timing marks on the front pulley from the ... | |
| Thermostat | 11/8/2008 |
| Q: Another question for you, I went to a Jag dealership and they did an estimate on a fuel problem I ... A: The 85 Jaguar Vanden Plas is a XJ-6 with a trim package and it only has one thermostat. Only the 12 ... | |
| 1987 central locking failure | 11/8/2008 |
| Q: My 1987 XJ6 central locking failed today. The driver side door works mechanically both with the key ... A: You said the trunk lock worked????? It can't be a fuse if the trunk lock works. They are all on the ... | |
| 1987 central locking failure | 11/8/2008 |
| Q: My 1987 XJ6 central locking failed today. The driver side door works mechanically both with the key ... A: If the trunk lock works then the passengers lock and the two back seat locks are receiving power as ... | |
| 87 JAG XJ6 | 11/7/2008 |
| Q: HAVE A 1987 XK6. NEITHER FUEL PUMP IS WORKING. I KNOW THERE ARE 2 OR 3 ELECTRICAL SYSTEMS THAT ... A: If you have an 87 XJ-6 Jaguar you only have one fuel pump. The test to see if it is working is to ... | |
| 1987 central locking failure | 11/7/2008 |
| Q: My 1987 XJ6 central locking failed today. The driver side door works mechanically both with the key ... A: Up to vin number 470739 there is a in-line fuse (15a) on the Aux fuse panel that powers the lock ... | |
| jag 1985 xj6 fuel | 11/7/2008 |
| Q: One fuel tank full. Drove about 100 miles while smelling gas the time. After being parked for about ... A: A leak at both tanks is a clear indication you need someone to look to see where the leaks are ... | |
| interior lights not working | 11/6/2008 |
| Q: the # 3 fuse is or seems to be charged when i put fuse in it really gets hot and i have no inside ... A: Isaac, What amp fuse are you installing in #3 fuse position? It should have a 15a fuse. If that is ... | |
| Inoperable Jaguar Fuel Gauge | 11/4/2008 |
| Q: I have a 73 Jag-XJ6 & the fuel gauge does not work. It stopped at a quarter tank although the fuel ... A: Bill, check both gauges for power as most gauges are powered from the same power supply. I don't ... | |
| XJ-6 Series 3 runs poor when cold | 11/4/2008 |
| Q: My 87 XJ-6 starts fine and runs great with warm engine. However, upon cold start it runs horrible ... A: The coolant warning light you are talking about is just a coolant level indicator in the front of ... | |
| XJ-6 Series 3 runs poor when cold | 11/4/2008 |
| Q: My 87 XJ-6 starts fine and runs great with warm engine. However, upon cold start it runs horrible ... A: The coolant temp sensor has control of a necessary rich mixture when the engine is cold. The cold ... | |
| Inoperable Jaguar Fuel Gauge | 11/3/2008 |
| Q: I have a 73 Jag-XJ6 & the fuel gauge does not work. It stopped at a quarter tank although the fuel ... A: You do need to remove the sending unit on which ever tank is reading wrong to be sure it is not ... | |
| '71 xj6 gas tank removal | 11/3/2008 |
| Q: My son was recently given a '71 xj6. The passenger side gas tank has been cleaned but the driver ... A: I have removed several XJ-6 tanks but not a 71. However, I believe it is the same as the later cars ... | |
| no heat | 11/3/2008 |
| Q: I have a 87 series 3 heater control valve hoses are hot nothing in the car is there a way too turn ... A: First check to see if the vacuum unit is opening the heater control valve. The heater valve is a ... | |
| firing order | 11/2/2008 |
| Q: what is the firing order on a 82 xj6 jagur on the cap were does number 1 start on it A: Where # 1 is in the cap depends on where it was put when the last person who was into the engine ... | |
| Jaguar XJS | 10/30/2008 |
| Q: One of my reverse lamp bulbs went out. Then the stop lamps went out. Then the headlights stop ... A: Never try to diagnose electrical problems on several items at once. Always pick only one item and ... | |
| valves | 10/30/2008 |
| Q: pulled head and had valves done. put back together shim and tappets back same order came out. now ... A: Check valve clearance and write down what you get on each valve. Then remove the cam covers and turn ... | |
| valves | 10/30/2008 |
| Q: pulled head and had valves done. put back together shim and tappets back same order came out. now ... A: David, You can't use the same shims if you did any valve work, because the thickness of the shims ... | |
| Battery charging | 10/29/2008 |
| Q: On my '87 xj6 I recently replaced the battery and about a week later the red battery light came on ... A: You need to first check the belt tension and then check the connections from the alternator to the ... | |
| 1976 xj6 wiper relay location | 10/29/2008 |
| Q: wipers fail to work, no power to the switch or wiper motor. all the fuses in the fuse box are ok. ... A: Sorry for the delay Kevin, I don't have a locater for the 76 Jag and I can't remember where the ... | |
| 1985 Transmission xj6 | 10/27/2008 |
| Q: When I take my foot off the gas the transmission shifts into a lower gear like a down shift is this ... A: No, it is not normal unless you are going slow in a high gear and it is about the speed that it ... | |
| XJ6 - 1985 - speedometer pb | 10/26/2008 |
| Q: my 1985 XJ6 speedometer started to go wrong randomly and then eventually stopped. Mileage isn't ... A: The 85 XJ-6 Jaguar does not have a cable driving the speedometer. It is electric and is powered by a ... | |
| low coolant | 10/26/2008 |
| Q: I travel about 35 miles to work one way.I will use about 1 pint of coolant at 63 miles a hour at 70 ... A: There are several things you need to look at. First the expansion tank is under the left front ... | |
| Radio Problems-85 XJ6 Series III | 10/23/2008 |
| Q: I recently replaced the factory speakers with new Infinti speakers. I also took out the factory ... A: To access the relay and fuses, remove the center console arm rest lid and the plastic inner tray. ... | |
| Radio Problems-85 XJ6 Series III | 10/22/2008 |
| Q: I recently replaced the factory speakers with new Infinti speakers. I also took out the factory ... A: There were several different radio wiring systems used on the Ser III so I will need to know if you ... | |
| 87 XJ6 Starts fine, dies in gear (part 5): | 10/20/2008 |
| Q: This is an update to my Jag woes ... A: No, a plugged exhaust is plugged all the time and reacts to the amount of exhaust that is pushed ... | |
| 87 XJ6 Starts fine, dies in gear (part 5): | 10/20/2008 |
| Q: This is an update to my Jag woes ... A: When the plugs are flat black, that is excess fuel. The major influences on fuel mixture are the ... | |
| 1985 jag wont start | 10/17/2008 |
| Q: Howard my 85 jaguar shut off while driving the fuel pump is good the injector does not open i have ... A: Steve, I'm sure an ECU can fail but I have not run into one, but have heard of a failure when a ... | |
| 1985 jag wont start | 10/17/2008 |
| Q: Howard my 85 jaguar shut off while driving the fuel pump is good the injector does not open i have ... A: The ECU gets it's signal to ground injectors from the ignition system so the first step is to check ... | |
| Swapping auto transmission to manual | 10/15/2008 |
| Q: I'm looking at buying an 1987 Series 3 XJ6 around my neighborhood and I'm trying to get a rough idea ... A: You would have to change a lot to do that if you could find a standard trans car to get all of the ... | |
| 1986 Jag XJ6 Series III - Engine Won't Turn Over | 10/10/2008 |
| Q: I was recently given a 1986 Jaguar XJ6 Series III as a first car by an uncle of mine. It is a ... A: You need to first look at the new battery to see if you got a "Deep Charge" or "Diesel" battery. The ... | |
| rich of lean mixture | 10/8/2008 |
| Q: Howard, My timing is right on, new fuel is both tanks my cats were replaced two years ago with the ... A: If you passed CA emissions and moved to 5200 ft you probably are rich and you need to turn the ... | |
| 85 xj6 wont start | 10/7/2008 |
| Q: Howard, i have 150 pounds of compression spark at the coil an plugs new fuel pump and its working it ... A: If you are sure the timing is correct and the fuel is not stale, I would guess either the CATs are ... | |
| Rear Brakes and Running Issues | 10/7/2008 |
| Q: I've recently purchased a 1985 Jaguar XJ6VDP. I'm very excited to work on the car myself, but I ... A: When you get the book just follow the sequence they detail. It is a lot of work. The air flow meter ... | |
| Rear Brakes and Running Issues | 10/6/2008 |
| Q: I've recently purchased a 1985 Jaguar XJ6VDP. I'm very excited to work on the car myself, but I ... A: As far as the rear brakes go, you should not even consider doing it yourself unless you have a ... | |
| 85 xj6 wont start | 10/2/2008 |
| Q: Howard, i have 150 pounds of compression spark at the coil an plugs new fuel pump and its working it ... A: Jeff, if the noid light did not pulse you need to test for power on one of the two wires. If you did ... | |
| jaguar e type S3 V12 | 9/30/2008 |
| Q: i am a new owner of this car, its idle speed when warm is very high at around 1300 rpm. i have wound ... A: There is a simple fact and that is no engine can run at 1300 RPM without air. If you cut the air ... | |
| 85 xj6 wont start | 9/30/2008 |
| Q: Howard, i have 150 pounds of compression spark at the coil an plugs new fuel pump and its working it ... A: To test the injectors you can put a stethoscope on the injectors and listen to them click or get a ... | |
| recently purchased xj6 | 9/25/2008 |
| Q: i recently purchased a 1986 xj6 that is in excellent condition. It has about 100,000 miles on it, ... A: That is a classic symptom on the Ser.III XJ-6. The car requires a "Deep Charge" battery like a ... | |
| Alternator problem ? | 9/21/2008 |
| Q: When I turn my 85 xj6 off and take out the key, I get a icon picture of the battery. What could that ... A: Lee, 13.84v and the light on the instrument panel goes out, is an indication that the charging ... | |
| Alternator problem ? | 9/20/2008 |
| Q: When I turn my 85 xj6 off and take out the key, I get a icon picture of the battery. What could that ... A: You should not get any lights when the key is removed. But first you need to put a volt meter across ... | |
| Nashville, Tn. mechanic: TR6 | 9/20/2008 |
| Q: I saw your post regarding a good, honest mechanic in the Nashville area. Could you give me a ... A: I can recommend JD in the Nashville area. You will find him very knowledgeable on TR-6s and most ... | |
| 1987 jaguar | 9/17/2008 |
| Q: Do you know where the fuse is located for the power sun roof,I checked the 2 panels under the ... A: James, the AC runs all the time, even when the heat is on, but when the vacuum doors don't operate ... | |
| jag xj6 | 9/16/2008 |
| Q: have a1986 xj6 4.2. when cranking car will fire and try to start.as soon as i release the key it ... A: That is true, the fuel pump is activated by the air flow meter. If the engine is cold, a "cold ... | |
| 1987 jaguar | 9/15/2008 |
| Q: Do you know where the fuse is located for the power sun roof,I checked the 2 panels under the ... A: The same power supply for the windows supplies power to the sun roof which is a thermal breaker. If ... | |
| low oil pressure | 9/12/2008 |
| Q: I purchased a 1986 XJ-6 4.2 that has low oil pressure. I placed a manual pressure gauge at the low ... A: If you had the pressure relief valve out, did you also remove the filter block from the engine? ... | |
| 1973 series III E type engine miss | 9/8/2008 |
| Q: I have a 1973 series III E type with a problem I can’t solve. When cold, it stars and runs ... A: I agree that it most likely is not ignition because pulling a choke usually don't correct an ... | |
| 87 XJ6 Starts fine, dies in gear (part 4): | 9/8/2008 |
| Q: Speedo says 110k miles, but I'm sure it is closer to 130+k. My car suffers from the non-working ... A: That is not uncommon as the head studs go all the way to the bottom of the cooling system and ... | |
| 1987 XJ6 4.2L | 9/7/2008 |
| Q: I just purchased a 86 XJ6. The engine runs very rough and there is a lot of smoke coming out of the ... A: Your compression test was useless as you didn't open the throttle during the tests. No air in, ... | |
| battery light indicator | 9/2/2008 |
| Q: The voltage meter reads 13 charging, however the battery indicator light brightens when accelerating ... A: You need to put a volt meter across the battery posts and check battery voltage (12+ v) Then start ... | |
| XJ6 1985 | 9/1/2008 |
| Q: A Friend has a problem. I am a Diesel Teck. He said that the Fuel Injectors have no power .It will ... A: The power to the injectors comes from the power resistor pack on the forward lower right front ... | |
| 86 XKS V12 will not rev | 8/30/2008 |
| Q: I have an 86 XJS when the engine warms up it will not accelerate. It idles fine about 800-900RPM. ... A: A no rev up condition can be many things but you need to do some testing. First run vacuum test and ... | |
| 1985 XJS HE | 8/28/2008 |
| Q: The car has 40,000 miles it starts and seems to run fine but while driving it will just die. You can ... A: Jeff, the timing light test tells you if it is in the ignition and the LED test tells you if it is ... | |
| 1985 XJS HE | 8/27/2008 |
| Q: The car has 40,000 miles it starts and seems to run fine but while driving it will just die. You can ... A: The fact that it quits narrows the problem down to only a million things. It is no use testing when ... | |
| 87 XJ6 Starts fine, dies in gear (part 4): | 8/26/2008 |
| Q: Speedo says 110k miles, but I'm sure it is closer to 130+k. My car suffers from the non-working ... A: It usually effects the lower RPM range but can effect it up higher as the fuel that goes into the ... | |
| Wiper relay location | 8/21/2008 |
| Q: I have an 86 XJS and the wipers are not working. I would like to know where the wiper relay is ... A: The power to the wipers goes to the wiper switch by a light green wire and on to the wiper motor and ... | |
| 87 XJ6 Starts fine, dies in gear (part 4): | 8/21/2008 |
| Q: Speedo says 110k miles, but I'm sure it is closer to 130+k. My car suffers from the non-working ... A: The bore scope will tell the tail. I pulled one Jag down that had so much carbon on the intake valve ... | |
| A/C | 8/20/2008 |
| Q: Howard, on my question, I fogot to tell you that it is about a 1986 Jaguar XJS. Howard, when I turn ... A: Yes, the doors are controlled by vacuum motors and the vacuum motors are controlled by two vacuum ... | |
| 87 XJ6 Starts fine, dies in gear (part 4): | 8/20/2008 |
| Q: Speedo says 110k miles, but I'm sure it is closer to 130+k. My car suffers from the non-working ... A: Dave, it is a lot of work to do a valve job on a Jag as compared to a domestic V-8. So you want to ... | |
| 87 XJ6 Starts fine, dies in gear (part 3) | 8/19/2008 |
| Q: I removed/cleaned the throttle, oil breather screen and tubes. I also removed the oil in the intake ... A: Dave, the regulator does operate when the pump is on because most of the fuel that is pumped up to ... | |
| 87 XJ6 Starts fine, dies in gear (part 3) | 8/18/2008 |
| Q: I removed/cleaned the throttle, oil breather screen and tubes. I also removed the oil in the intake ... A: Dave, you already got a reading from the 0/2 sensor why do you not believe what it tells you? Clean ... | |
| 87 XJ6 Starts fine, dies in gear (part 3) | 8/18/2008 |
| Q: I removed/cleaned the throttle, oil breather screen and tubes. I also removed the oil in the intake ... A: The compression readings look ok but the 0/2 readings of .75 v(unplugged)if this was a warmed up ... | |
| 87 XJ6 Start fine, dies in gear (part 2) | 8/15/2008 |
| Q: I finally found time to work on my car again ('87 XJ6). I have a friend with a parts car and I ... A: A regular volt meter can check O 2 out put.(blue wire) .5 volts = normal and a lean voltage = a lean ... | |
| 87 XJ6 Start fine, dies in gear (part 2) | 8/14/2008 |
| Q: I finally found time to work on my car again ('87 XJ6). I have a friend with a parts car and I ... A: Dave, the only other things I can think to look at is manifold vacuum and if you have a bore scope ... | |
| 1987 XJ6 Rough Idle, Sputter, and Die | 8/12/2008 |
| Q: I am the original owner of a 1987 XJ6 with 13,000 miles. It ran fine until recently. Now it starts ... A: If you had the throttle open on the test of #3 & 4 and the wet test was about the same, it is an ... | |
| 1987 XJ6 Rough Idle, Sputter, and Die | 8/12/2008 |
| Q: I am the original owner of a 1987 XJ6 with 13,000 miles. It ran fine until recently. Now it starts ... A: All of the symptoms are useless information other than to tell you you need to run tests. Yes, fuel ... | |
| 87 XJ6 Start fine, dies in gear (part 2) | 8/11/2008 |
| Q: I finally found time to work on my car again ('87 XJ6). I have a friend with a parts car and I ... A: No code system on this car. But you need to quit throwing parts at it until you test to see what is ... | |
| '85 XJ6 passenger side windows | 8/8/2008 |
| Q: My '85 XJ6 passenger side windows will not operate. The driver's side windows and sunroof are fine. ... A: The left window would not operate if the relay had failed check the red w/slate tracer wire with the ... | |
| '85 XJ6 passenger side windows | 8/8/2008 |
| Q: My '85 XJ6 passenger side windows will not operate. The driver's side windows and sunroof are fine. ... A: I found that most of the time when a window quits working, it was the rocker switch that failed and ... | |
| Series III ignition advance | 8/8/2008 |
| Q: I have an e type fitted with a 1987 series III 4.2 XJ6 engine. The engine is fitted with triple SU's ... A: They are telling you how to set it. Max performance on any engine is to set the timing advanced to ... | |
| '86 XJ6 AC Center Dashboard Vent | 8/4/2008 |
| Q: My AC Center Dashboard Vent does not blow no matter what switch settings I use. Cool air does ... A: I am not familiar with any limit switch. The vacuum valve is on the cylinder that rotates by a small ... | |
| '86 XJ6 AC Center Dashboard Vent | 8/4/2008 |
| Q: My AC Center Dashboard Vent does not blow no matter what switch settings I use. Cool air does ... A: Set the controls to "Auto" speed control and "65" degrees on the temperature control and run for 5 ... | |
| 1984 XJ6 Vanden Plas | 8/3/2008 |
| Q: HELP! My jag is giving me about 8 MI. to the gallon and it idles very rough....where do I start? ... A: Poor fuel mileage and rough running can be caused by a thousand things so you need to do some ... | |
| XJ6 hazard/turn signals | 7/27/2008 |
| Q: i tried to test my 86 xj6 S3 flasher relay and do not have power coming into the flasher relay at ... A: Yes Rick, the hazard switch does have an effect on turn signals. Go to my web site and copy the ... | |
| XJ6 hazard/turn signals | 7/27/2008 |
| Q: i tried to test my 86 xj6 S3 flasher relay and do not have power coming into the flasher relay at ... A: There is one power sources for the flasher unit. Light green w/pink tracer wire to the #49 pin on ... | |
| mechanic | 7/20/2008 |
| Q: I'm looking to buy a Jaguar from a used dealer, but want to have it checked out by a mechanic first. ... A: It depends on what year model it is. If it is a 2000 or newer you are best off taking it to the ... | |
| XJ6 idles fine, dies in gear | 7/20/2008 |
| Q: I have an 87 XJ6-probably about 150Kmiles- that starts, idles and drives fine for about a minute, ... A: This car has the Bosch "L" jetronic injection system and there are some tests that need to be done ... | |
| xk120 overcharging | 7/17/2008 |
| Q: 1953 xk120 Generator output good.1500 rpm up the ammeter will go to 20-25 amps.Headlights will bring ... A: You are quoting amperage. Amperage is 100% dependent on load. Voltage is the push (charging system) ... | |
| 86 XJS V12 Won't turn over | 7/16/2008 |
| Q: I have recently purchased an 86 XJS V12. The starter is not operating. I do hear a clicking sound ... A: You should check the solenoid first. Just because it made a "Click" does not mean it connected the ... | |
| 86 XJS V12 Won't turn over | 7/15/2008 |
| Q: I have recently purchased an 86 XJS V12. The starter is not operating. I do hear a clicking sound ... A: No Buck, it's not normal. But you do need to determine if it is the relay clicking or the starter ... | |
| Fuel pump 84 xjs | 7/13/2008 |
| Q: When trying to start the engine the fuel pump never goes off and im afraid of engine damage from ... A: For the fuel pump to continue to run after turning off the ignition switch, the fuel pump relay must ... | |
| compression in cylinders | 7/13/2008 |
| Q: The [a] bank was almost all lower than the [b] bank by 30 lbs. Some were at 150 some as high as ... A: Bill, give me the compression readings on each cylinder and did you hold the throttle open on these ... | |
| 85 XJ6 w/ chevy 350 AC problem | 7/9/2008 |
| Q: Car has a chevy 350 and GM AC unit. AC unit works when we apply power to the unit however, using ... A: Unit?? What unit? do you mean the compressor clutch? If that is what you are talking about, there ... | |
| 1985 jag xj6 rebuild head | 7/9/2008 |
| Q: Ive been away for the pass couple of days so haven't tried your suggestion yet. I will be on ... A: Sorry I was not clear on that, I meant it was going to take me several days to locate and post the ... | |
| 1985 XJ6 | 7/6/2008 |
| Q: Ihave just had the head rebuilt and installed. Everything went back together OK, but the engine will ... A: It is unlikely a vacuum leak that is causing the high RPM problem although it may be the low RPM ... | |
| 86 xjs v12 tail lights | 7/2/2008 |
| Q: I bought a 1986 xjs v12 no tail lights please tell me all that could be wrong.What I could check. ... A: First check for power at the bulb socket and their grounds. Then if your license lights are out too, ... | |
| XK120 Brakes not releaseing | 6/30/2008 |
| Q: After I have been driving my car for about 20 minutes or so, the front brakes seem to hand up (not ... A: As I remember the 120 had a two stage master cylinder. Two different sized bores in one cylinder on ... | |
| 1974.E type, V12, miss fires | 6/30/2008 |
| Q: My 1974,V12, E type will miss fire when left to idle for a few minutes after the engine has reached ... A: There are several methods that mechanics use to test for vacuum leaks and some use a combination of ... | |
| 1974.E type, V12, miss fires | 6/30/2008 |
| Q: My 1974,V12, E type will miss fire when left to idle for a few minutes after the engine has reached ... A: The bypass valve is a decel valve and will not cause no vacuum. To disable it for test purposes, you ... | |
| remove/replace engine | 6/27/2008 |
| Q: This is a followup to a previously answered question. I asked about removing and replacing an engine ... A: Bill, the only expense would be if you have a shop do the change and that depends on the shop. A Jag ... | |
| 1985 XJS gas in the oil | 6/25/2008 |
| Q: What might cause gas in the oil that blows out of the exhaust..Injectors maybe?? ANSWER: Hi Bill, ... A: You didn't tell me if it passed emission tests. It is a lot of work to pull all the injectors out to ... | |
| 1985 XJS gas in the oil | 6/24/2008 |
| Q: What might cause gas in the oil that blows out of the exhaust..Injectors maybe?? A: You will have to clear that up a little for me. "gas in the oil that blows out of the exhaust" ... | |
| 87 XJ6 starting woes | 6/23/2008 |
| Q: I've got an 87 XJ6 that was running fine but became a little harder to start over the course of a ... A: Tell me what the compression readings were on each cylinder (throttle open)and what the cranking ... | |
| 87 xj6 no start | 6/19/2008 |
| Q: I have an 87 xj6 4.2, the only way to get it to start is to advance the ign timing with the ... A: All that does not tell me what is wrong but I can give you a few things to look at. First put a ... | |
| Jaguar XJ6 | 6/18/2008 |
| Q: I admire your expertise range. On the XJ6s, is there a year you found least troublesome? Some ... A: I have no experience with any of the Jags after the Series III but have heard the same from people ... | |
| power steering leak causes fire | 6/16/2008 |
| Q: Yesterday I was driving my 1985 XJ6 and after getting off the hwy I noticed a tremendous amount of ... A: Sorry Silvia, I quit working on cars for people many years ago. It sounds like you need a Jaguar ... | |
| bad gas or water in fuel tank | 6/16/2008 |
| Q: I filled up on petrol, I think that i got a bad batch of petrol and maybe there is water in the tank ... A: You didn't say what kind of Jaguar but that does not matter with water in the gas. (If that is what ... | |
| xjs v12 he miss fire | 6/2/2008 |
| Q: I have a miss fire I think on the right bank of my v12 xjs 1988 the engion seems to do this all the ... A: You need to do a compression test first. Be sure to hold the throttle open and let the engine spin ... | |
| rough idle | 5/26/2008 |
| Q: have a 1984 xj6 the head has been replaced along with other things vacuum lines tune up etc. still ... A: Yes, On any engine with a vacuum advance unit you can just follow the trail of the vacuum on into ... | |
| 1986 XJ6 Ignition Question | 5/25/2008 |
| Q: I picked up an 86 XJ6 Vandan Plas 4.2L yesterday. It started yesterday but today (after rain ... A: The XJ-6 sounds like all cars when you start one. I have no idea what sound you are hearing but you ... | |
| rough idle | 5/25/2008 |
| Q: have a 1984 xj6 the head has been replaced along with other things vacuum lines tune up etc. still ... A: The Series III XJ-6 is noted for having a rough idle even when everything is good. The rough idle is ... | |
| Jaguar will not completely turnover to start | 5/20/2008 |
| Q: My car sounds like it wants to turn over but will not start. What could be the problem? 1986 XJ6 ... A: The series III XJ-6 required a deep charge battery to start but even when people put in a lower ... | |
| XJ6 problems | 5/19/2008 |
| Q: I have a 1971 ; xj6 ; 4.2l. I have a following problem. The engine works very awkwardly. Huge ... A: The coolant operated Stromberg carb chokes are prone to failure and this has prompted a manufacture ... | |
| Jaguar w/ multiple repair/replacement issues | 5/19/2008 |
| Q: A relative passed his Jaguar on to me, mainly 'cause it has problems he doesn't want to deal with. ... A: It depends on how far out the island you are but there should be quite a few independent Jag shops ... | |
| Jaguar w/ multiple repair/replacement issues | 5/18/2008 |
| Q: A relative passed his Jaguar on to me, mainly 'cause it has problems he doesn't want to deal with. ... A: It really depends on the condition of the car. Meaning paint, body and interior and mileage and how ... | |
| 1987 xj6 No ign lights, | 5/12/2008 |
| Q: After parking up the 1987 XJ6 for a few years, (drove it in the shed)I drained the fuel last week ... A: The Ignition light and all of the central warning lights get their power direct from the ignition ... | |
| 1985 xj6 | 5/9/2008 |
| Q: 1985 xj6 none of the guages are working ie temp oil tach asked around everyone seems to think fuses ... A: The only thing all the instruments have in common is the #4 fuse in the main fuse panel (15 amp) You ... | |
| temperature gauge problem | 5/6/2008 |
| Q: Following up on your email from earlier in the week. I got a mutli-meter and will try taking some ... A: The ground sounds ok and the ohms reading is a little higher than mine but not that far off. The ... | |
| 1974 Series 3 V 12 E type | 5/3/2008 |
| Q: Have just rebuilt the braking system and replaced both the m/cyl and servo with units from ... A: I think it would be less messy taking the cylinder and valve off as a unit as I remember the ... | |
| 1974 Series 3 V 12 E type | 5/3/2008 |
| Q: Have just rebuilt the braking system and replaced both the m/cyl and servo with units from ... A: What you say is one possibility, however other items need to be cleared as possible also. Any time ... | |
| temperature gauge problem | 5/2/2008 |
| Q: Following up on your email from earlier in the week. I got a mutli-meter and will try taking some ... A: Frank, You have a multi meter that can read temperature? Cool!!! I never seen one. All the sending ... | |
| temperature gauge and a/c problem | 4/30/2008 |
| Q: I’m writing this as your responses to other people on line are very professional and comprehensive! ... A: I checked the ohms and it was cold at 63 deg F. and it was about 1K ohms and I warmed it up to about ... | |
| temperature gauge and a/c problem | 4/30/2008 |
| Q: I’m writing this as your responses to other people on line are very professional and comprehensive! ... A: Sorry about that, I have brain fade at times and I have no idea what I told the other guy. You are ... | |
| temperature gauge and a/c problem | 4/29/2008 |
| Q: I’m writing this as your responses to other people on line are very professional and comprehensive! ... A: The sending units are in the end of each fuel tank behind each tail light assembly. Run the tanks ... | |
| battery charging problem | 4/28/2008 |
| Q: I have a 1985 jaguar XJ6 series III (4.2). A problem that I have with it is that the battery ... A: It is not normal for the charge rate to drop into the red and the warning light to come on for ... | |
| jaguar x6j 1986 | 4/26/2008 |
| Q: No windows in this car work. They were all working just fine and all of a sudden died. can i replace ... A: The only fuse is the ignition fuse and the engine would not run if that was burned. Are you sure you ... | |
| 86 XJ6 | 4/26/2008 |
| Q: I recently replaced the head gasket on this vehicle after it overheated and died on the highway. I ... A: Sorry Tim, your readings indicate you have both ring and valve problems. No, on the springs being ... | |
| 86 XJ6 | 4/25/2008 |
| Q: I recently replaced the head gasket on this vehicle after it overheated and died on the highway. I ... A: Tim, there is something very wrong with your compression test. Run it again and this time be sure ... | |
| ignition timing | 4/22/2008 |
| Q: I have a 67 Jaguar s type and the car has a 3.4 XK engine. I checked ignition timing with a timing ... A: There are several things that can make the timing change on each revolution. The distributor is ... | |
| AC compressor is always on. 1985 XJ6 | 4/21/2008 |
| Q: When the Climate control is off the compressor stays off, but hen I turn it on any position (low, ... A: If you want an overheat protection for the compressor, you have an engineering problem. You will ... | |
| My flashers are always on no other lights work | 4/9/2008 |
| Q: I have an 87 xjs 5.3L with Engine OffKey Off, The emergency flashers work as they should With Engine ... A: The hazard switch and the turn signal switch are the only two items in the system that can apply ... | |
| Wiil not pass California Smog Test | 4/8/2008 |
| Q: I just purchased a 1987 XJ6. I live in California. The car will not pass a California Smog Test. ... A: Too rich means the CO failed. I take it that the HC was ok? Unfortunately, on a fuel injection ... | |
| Brake problem | 4/8/2008 |
| Q: First of all thanks for the help. I have a 1967 E-type that has a strange brake problem. At start ... A: You need to run the car until the brakes are dragging and quickly jack up one front wheel with the ... | |
| Removing rear vision mirror XJ-6 Series 3 85 | 4/4/2008 |
| Q: My overhead cloth is sagging and I would like to reglue. I cannot work out how to take off the ... A: If you are just correcting a few small spots on the edges like around the mirror and such you can ... | |
| ignition firing | 3/12/2008 |
| Q: I have a1987 xj6 4.2l. The car starts but has little power and could only rev to 3grand. When ... A: There are standard procedures to diagnose engine problems. A dist. cap is one of a thousand possible ... | |
| A/C Compressor Clutch 12 v not present | 3/6/2008 |
| Q: This is the last item on my rebuild of a 1985 XJ6. The compressor was recently rebuilt. When ... A: The climate control system in the Jag is complex in it's operation but you can check three fuses ... | |
| Heater | 3/4/2008 |
| Q: While I am on a roll. 1987 XJ6, Defrost blows hot, when I turn the dial to Low-Auto or High it ... A: The left knob totally controls temp. The right knob is "Mode" and controls fan and modes with ... | |
| fuel leak | 3/3/2008 |
| Q: I have a 1987 XJ6, fuel comes out of the 1/4 vent tube in the trunk, is this a normal result of ... A: Even if the car were upside down the only way fuel could be escaping out of the vent system is to go ... | |
| 84 XJS HE OVERHEATING | 2/12/2008 |
| Q: THE CAR OVER HEATS , I CHANGED BOTH THERMOSTATES , THE BELTS ARE OLD AND THATS MY NEXT PROJECT, ... A: If you don't have an exhaust analyzer available, go to most any auto parts store and purchase the ... | |
| 69 XKE SER II FHC | 2/6/2008 |
| Q: My car is failing to charge, the in dash guage went a plus to 0 while on the road, I checked all the ... A: Since the regulator is mounted so far from the alternator you need to take an ohm meter and test ... | |
| central locking | 2/4/2008 |
| Q: 1987 xj6 central locking.... The front passenger door locks with all other doors but it doesn't ... A: The 87 has motorized door locks. The motors are permanent magnet motors, meaning they reverse ... | |
| loud noise on exhaust side of head | 1/25/2008 |
| Q: '86 XJ6 - Is this a sign of not having a stakedown kit? Can you refer me to anyone in the Kansas ... A: If it is a clicking noise it is possible that it needs the kit installed. I would not run the engine ... | |
| XJ12 idle problem | 1/2/2008 |
| Q: Fitzcharles I would be most grateful if you could review and answer a question for me regarding a ... A: Your elaborate symptoms don't tell me what is wrong but if I were faced with all that, I would use ... | |
| Cruise Control 1986 Series 3 | 12/29/2007 |
| Q: Iwondered if you could help me before I need to take my Jag into a srevice agent.The cruise control ... A: Two fuses are used, one is the fuse #11 in the main fuse box which operates the brake lights. The ... | |
| Positive Ground | 12/27/2007 |
| Q: Can you tell me which jaguars models (by year) used positive battery ground? A: All Jaguars, XK-120, XK-140, XK150 and the early E-type were positive ground. As I remember, the ... | |
| 1986 Jaguar xj6 fuel problems | 11/25/2007 |
| Q: Just bought the car, seller had trouble keeping it running,they disconnected the passenger side gas ... A: The only way you can find a leak is to take the tail light assembly out and look. You may even have ... | |
| jaguar | 11/20/2007 |
| Q: the heat is not working in my xj-6 jaguar? can you let me know what may be the problem A: The heater control valve is on the firewall just behind the engine and is vacuum controlled. So all ... | |
| 86 xj6 power door locks | 11/16/2007 |
| Q: power door locks in-operable....checked the switch/solenoid in drivers door & it checked ok. Haynes ... A: If you heard a clunk from the trunk when you locked the door it means you have the solenoid type ... | |
| 86 xj6 power door locks | 11/14/2007 |
| Q: power door locks in-operable....checked the switch/solenoid in drivers door & it checked ok. Haynes ... A: The ser. III XJ-6 had either solenoids or motors. The earlier cars had solenoids and the later had ... | |
| 1987 Jaguar XJX12 | 11/14/2007 |
| Q: Howard I have a 1987 Jaguar XJS 12 in great condition. I just had all of the wires and plugs ... A: Yes, it could be one of the TWO coils. However, if a jumper battery helps it to start you need to ... | |
| heater in 1987 XJ6 | 11/10/2007 |
| Q: The heater works in this car but seems kind of weak. The windows steam up all of the time with ... A: Yes, there can be moisture in the heating system. If it is coming from a leak in the heater core it ... | |
| series 3 rear quarter light removal | 11/5/2007 |
| Q: I have done everything that the factory manual says and up to this point the glass is slightly ... A: First Tonie, what are you calling a "quarter Light"? If you are talking about a "Side Marker" light ... | |
| front door locks on XJ6 | 11/4/2007 |
| Q: I have a 1987 XJ6 on which the front door locks do not work - not even manually. They do not work ... A: If they don't work manually then you need to correct that first before looking at the electric ... | |
| fuel tank switching valve | 11/4/2007 |
| Q: I recently replaced the fuel tank switching valve with a new one, but I cannot seem to get it to ... A: As for connecting it up wrong. The only thing you could do is turn it around since the two lines ... | |
| 87 xjs12 | 10/29/2007 |
| Q: i have a 1987 jag v12 and the fan belt is very loose causing the car to over heat how do i tighten ... A: The adjuster is easily accessible on top of the power steering pump on the drivers side. It should ... | |
| 1987 xj6 | 10/29/2007 |
| Q: My car has been siting for about a year now. I went to start it it fired right up I decided to ... A: The most likely problem with the fire up would be to recheck the firing order and position of the ... | |
| overheat&nonstart | 10/11/2007 |
| Q: my 84 XJS v12 was overheating on my way home. The next morning it would only turn over. What is the ... A: If it overheated and now does not run, you need to address the not running first. All engines only ... | |
| Speedometer/trip computer | 10/6/2007 |
| Q: I recently replaced my heater core. First trip out of garage the speedometer and trip computer was ... A: There are several items tied in to the system. The service Interval Counter, Cruise Control and Trip ... | |
| Cruise Control | 10/4/2007 |
| Q: I have a 1986 XJ-S V12, and the cruise did not work when I purchased the car. Any advice on what I ... A: I don't have a good test procedure for the ECU or actuator, so all you can do is test all the ... | |
| 86 XJ6 | 10/2/2007 |
| Q: I recently replaced the head gasket on this vehicle after it overheated and died on the highway. I ... A: The larger metal can relay on the firewall is the starter relay and it can be tested with a 12v ... | |
| 1987 jaguar xj6 | 10/2/2007 |
| Q: I'm sorry I need so much help but I really appreciate you! I removed the center console but I seem ... A: Stephanie, With the console plate up, you have access to the cable and linkage. If you are talking ... | |
| 1987 jaguar xj6 | 10/1/2007 |
| Q: regarding the shift selector and trans. cable. Could you give me explicit directions on how to ... A: Remove the center arm rest door and the inner plastic box. Remove all of the plugs from the window ... | |
| 1987 xj-6 | 9/29/2007 |
| Q: I recently purchased a 1987 xj-6. It has been running great until yesterday. I pulled out and put in ... A: The shift selector operates the transmission lever by a cable. Sometimes when the car is on a grade ... | |
| 1984 XJ6 SeriesIII | 9/29/2007 |
| Q: After running for 10 minutes right tank fuel is purged through the vapor emissions line and is ... A: The only way this can happen, is for the central switching valve in the trunk to fail while you have ... | |
| No Spark/start "86" XJ6 VP | 9/25/2007 |
| Q: Hey Howard, Ive been working on this problem now for ever and I just cant get it resolved. My Father ... A: Check for power at the coil with ignition on. Then check air gap between reluctor and pick-up in ... | |
| speedometer | 9/17/2007 |
| Q: My speedometer works in terms of registering the speed but the mileage counter does not work wither ... A: The transducer sends a signal to the speedometer and to the trip computer and cruise control. There ... | |
| 1984 XJS HE V12 WONT START 80K MILES | 9/9/2007 |
| Q: 1984 XJS HE V12 car suddenly wont start idles from 0-500 a few times then stalls sometimes wont idle ... A: It should only be in the 30s unless you dead headed it to a gauge which is useless info. You need to ... | |
| 1984 XJS HE V12 WONT START 80K MILES | 9/7/2007 |
| Q: 1984 XJS HE V12 car suddenly wont start idles from 0-500 a few times then stalls sometimes wont idle ... A: Keep in mind that any test you run needs to be done while the engine is in it's failed mode. What do ... | |
| 1984 XJS HE V12 WONT START 80K MILES | 9/6/2007 |
| Q: 1984 XJS HE V12 car suddenly wont start idles from 0-500 a few times then stalls sometimes wont idle ... A: It does sound lean but it does not have an air flow meter. You need to be sure between ignition or ... | |
| 1986 XJS V12 ignition amplifier | 9/4/2007 |
| Q: I have a 1986 XJS V12. Driving down the highway it stalled and wouldn't start. I had it towed back ... A: If you have the system with the external amplifier and you have power to BOTH coils and no spark, ... | |
| fuel gauge on 87 XJ^ | 9/3/2007 |
| Q: When I purchased this car a couple of months ago - it had been stored for the winter with the gas ... A: When the tanks are drained and empty the sending units are exposed to air and moisture and are pron ... | |
| engine dies - won't start for 5-10 minutes | 8/31/2007 |
| Q: I have a 1987 Jag XJ6. I recently replaced the fuel pump, installed a new battery, and put a new ... A: A piston engine can not have spark and fuel and not run unless compression goes away for 10 min. and ... | |
| xk120 rebuilt | 8/13/2007 |
| Q: how many hours does the book rate say it should take to do a complete r/r on a 1953 xk120 motor? ... A: I have experience on the 120,140 and 150, E type and on up to the XJ-6 ser III. I looked through ... | |
| parts availability | 8/6/2007 |
| Q: Mr. Fitzcharles, I own a 1989 XJ-6 and am in needs of certain parts. Where can I purchase reliable ... A: The Jaguar dealer is the best place. However, there are many aftermarket parts dealers in the ... | |
| Dropped worn door hinges | 8/4/2007 |
| Q: I have a jaguar series 3 sovereign XJ6 1984 4.2 auto.The two front doors have dropped and I need to ... A: Even though the job looks easy, it is a little more than it appears. Jack the car up and turn the ... | |
| 1992 JAGUAR XJS 12 CYLINDER | 8/1/2007 |
| Q: MY QUISTION IS THAT AT IDLE GAUGE SHOWS IN RED GAS GAUGE DOES NOT WORK AT ALL TOOK IT TO DEALER AND ... A: 25 PSI oil pressure at idle (If the oil is up to operating temp and the oil is a multi grade oil not ... | |
| '82 Jag XJ6 won't start | 7/8/2007 |
| Q: I recently inherited an '82 jag XJ6 and am having troubles getting it to start. I have replaced ... A: It is important to keep the battery charged while testing as a battery that will spin the engine ... | |
| 84 XJ6 Series III No Power to Fuel Pump | 7/3/2007 |
| Q: I recently piked up an 84 XJ-6 Series III. The previous owner could not get it to start after ... A: Not yet, you still need to see why no power to fuel pump. Remove the pump relay from it's socket and ... | |
| 84 XJ6 Series III No Power to Fuel Pump | 7/3/2007 |
| Q: I recently piked up an 84 XJ-6 Series III. The previous owner could not get it to start after ... A: The test of the fuel pump system is to remove the air filter, turn the ignition key to the on ... | |
| 1954 XK120 Jaguar DHC | 6/17/2007 |
| Q: I have the subject car and am experiencing the left rear brake handing up (not retracting). The car ... A: Remove the nuts holding the drum to the hub, then use a lead or brass mallet to tap the edge of the ... | |
| 87 XJS won't start | 6/16/2007 |
| Q: ..thanks for the advice. My girlfriend as a 87 XJS v-12 that sat covered outside in Michigan over ... A: The main relay is powered up by the Ign. sw. through the Inertia sw on the drivers door post. (white ... | |
| 87 XJS won't start | 6/15/2007 |
| Q: ..thanks for the advice. My girlfriend as a 87 XJS v-12 that sat covered outside in Michigan over ... A: In a "No Start" situation you need to just go to the basics. You have started that by getting the ... | |
| JAGUAR XJ6 (Model Years 1995 --> 1997) | 6/12/2007 |
| Q: .I am contemplating on buying a pre-owned XJ6, preferably 1995 --> 1997. Because of Jag's ... A: I am only experienced on Jag from the XK-120 up to the series III XJ-6 1987. What little I do know ... | |
| experienced mechanic | 5/25/2007 |
| Q: Firstly, I wish to commend you for your volunteer work on this site. It is much appreciated. My ... A: While it is possible for a coil to be bad and have a destroyed engine at the same time. A mechanic ... | |
Jaguar Repair
Answers by Expert:
Howard M. Fitzcharles III
Top Expert on this page
Expertise
Jaguar from the XK 120 to XJ-6 ser. 3 1987
Experience
Dealership line mechanic on MG, Triumph, Jaguar for 15 years, Instructor in commercial mechanics school 2 yr. Product information manager for piston and valve manufacture, Instructor & hotline answer man for import car parts importer 15 yrs.
Organizations
Associate member SAE
EAA member
Publications
Import Car magazine
Education/Credentials
ASE Master Auto with L-1 certification up to 2000
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