| Subject | Date Asked | Expert |
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| Rear Brakes and Running Issues | 10/6/2008 | Howard M. Fitzcharles III |
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 ...
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| 85 xj6 wont start | 10/2/2008 | Howard M. Fitzcharles III |
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 ...
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| jaguar e type S3 V12 | 9/30/2008 | Howard M. Fitzcharles III |
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 ...
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| 85 xj6 wont start | 9/30/2008 | Howard M. Fitzcharles III |
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 ...
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| recently purchased xj6 | 9/25/2008 | Howard M. Fitzcharles III |
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 ...
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| Alternator problem ? | 9/21/2008 | Howard M. Fitzcharles III |
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 ...
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| Alternator problem ? | 9/20/2008 | Howard M. Fitzcharles III |
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 ...
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| Nashville, Tn. mechanic: TR6 | 9/20/2008 | Howard M. Fitzcharles III |
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 ...
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| 1987 jaguar | 9/17/2008 | Howard M. Fitzcharles III |
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 ...
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| jag xj6 | 9/16/2008 | Howard M. Fitzcharles III |
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 ...
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| 1987 jaguar | 9/15/2008 | Howard M. Fitzcharles III |
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 ...
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| low oil pressure | 9/12/2008 | Howard M. Fitzcharles III |
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? ...
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| 1973 series III E type engine miss | 9/8/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 4): | 9/8/2008 | Howard M. Fitzcharles III |
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 ...
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| 1987 XJ6 4.2L | 9/7/2008 | Howard M. Fitzcharles III |
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, ...
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| battery light indicator | 9/2/2008 | Howard M. Fitzcharles III |
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 ...
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| XJ6 1985 | 9/1/2008 | Howard M. Fitzcharles III |
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 ...
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| 86 XKS V12 will not rev | 8/30/2008 | Howard M. Fitzcharles III |
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 ...
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| 1985 XJS HE | 8/28/2008 | Howard M. Fitzcharles III |
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 ...
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| 1985 XJS HE | 8/27/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 4): | 8/26/2008 | Howard M. Fitzcharles III |
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 ...
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| Wiper relay location | 8/21/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 4): | 8/21/2008 | Howard M. Fitzcharles III |
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 ...
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| A/C | 8/20/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 4): | 8/20/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 3) | 8/19/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 3) | 8/18/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Starts fine, dies in gear (part 3) | 8/18/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Start fine, dies in gear (part 2) | 8/15/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Start fine, dies in gear (part 2) | 8/14/2008 | Howard M. Fitzcharles III |
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 ...
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| 1987 XJ6 Rough Idle, Sputter, and Die | 8/12/2008 | Howard M. Fitzcharles III |
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 ...
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| 1987 XJ6 Rough Idle, Sputter, and Die | 8/12/2008 | Howard M. Fitzcharles III |
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 ...
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| 87 XJ6 Start fine, dies in gear (part 2) | 8/11/2008 | Howard M. Fitzcharles III |
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 ...
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| '85 XJ6 passenger side windows | 8/8/2008 | Howard M. Fitzcharles III |
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 ...
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| '85 XJ6 passenger side windows | 8/8/2008 | Howard M. Fitzcharles III |
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 ...
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| Series III ignition advance | 8/8/2008 | Howard M. Fitzcharles III |
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 ...
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| '86 XJ6 AC Center Dashboard Vent | 8/4/2008 | Howard M. Fitzcharles III |
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 ...
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| '86 XJ6 AC Center Dashboard Vent | 8/4/2008 | Howard M. Fitzcharles III |
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 ...
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| 1984 XJ6 Vanden Plas | 8/3/2008 | Howard M. Fitzcharles III |
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 ...
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| XJ6 hazard/turn signals | 7/27/2008 | Howard M. Fitzcharles III |
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 ...
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