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Volvo Repair/Questions
| Subject | Date Asked | Expert |
| 1986 Volvo 244 GL | 5/14/2009 | Roger Patricio |
| Q: The heater can not be turned off. That is, the tempurature lever set at zero has no effect, the fan ... A: Lionel, see, you didnt need me, you diagnosed it yourself. Draining the coolant is advisable as ... | ||
| stock radio replacement | 5/13/2009 | Roger Patricio |
| Q: I am trying to replace the stock radio in a 1987 Volvo740 GLE with a new cd player? how do i do it ... A: Winston, I wouldnt recommend to try to do this one especially if you have a power amplifier. Wires ... | ||
| 1989 volvo 760 tail light wiring | 5/13/2009 | Roger Patricio |
| Q: I was wondering if you might have a wiring diagram for the earlier and later models. I've tried ... A: Matt, if I had all that information, Id be rich. I dont have the wiring schematics at home. Thats ... | ||
| Fuel octane | 5/13/2009 | Roger Patricio |
| Q: I have a 1983 244 GL wagon (odometer stopped about a year ago at 244,000+ miles). It has always run ... A: Sheryl, On the older 240's, unless it was a Turbo Car, 91 was not necessary. May be coincidental. ... | ||
| 1989 volvo 760 crank case pressure | 5/12/2009 | Roger Patricio |
| Q: I'm having trouble with crank case pressure. I've replaced all the flame trap hoses and clean the ... A: Matt, the transmission shifting has nothing to do with vacuum. Back off the kickdown cable and see ... | ||
| 1989 volvo 760 tail light wiring | 5/12/2009 | Roger Patricio |
| Q: I was wondering if you might have a wiring diagram for the earlier and later models. I've tried ... A: Matt, its not really confusing at all. 83-87 brake light is at the top right if you are looking at ... | ||
| heater matrix | 5/11/2009 | Roger Patricio |
| Q: I have a 1999 Volvo V70 wagon purchaed a few months ago in summer. Air con works great but no heat. ... A: Michael, not sure why he said it was expensive and time consuming. Its not. There is no other way ... | ||
| 850 wagon doorlocks | 5/10/2009 | Roger Patricio |
| Q: We recently purchased a 1994 Volvo 850 Wagon. It came with no keys. (DMV accepted the title ... A: Marilyn, not really a trick but he does have to take the lock actuator out to access the clip that ... | ||
| Volvo 850 Oil Leak | 5/10/2009 | Roger Patricio |
| Q: I have a terrible oil leak in my 94 850 (5 cyl). I thought it was coming from the rear main, but ... A: Keith, yeah that flame trap box can get clogged but on the older EGR 850's, we have seen the actual ... | ||
| Volvo 850 Oil Leak | 5/9/2009 | Roger Patricio |
| Q: I have a terrible oil leak in my 94 850 (5 cyl). I thought it was coming from the rear main, but ... A: Keith, relax. These are really simple. Take the dist cap off and rotor. Now remove the plate. ... | ||
| "Service" Light on Dashboard | 5/9/2009 | Roger Patricio |
| Q: Roger: You were such a big help to me with my recent headlight wiper arm problem (all fixed now, ... A: Ed, the light comes on after 5000 miles or whatever the factory set it at. Whoever reset it last ... | ||
| tranny | 5/9/2009 | Roger Patricio |
| Q: i wanted to know if i can just change the transmission oil myself or is best to have it flush.Can ... A: Luis, its best to do just a drain and fill, then drive about 1000 miles, then do it again until the ... | ||
| Engine Seize? | 5/8/2009 | Roger Patricio |
| Q: On the drive into work today, the engine on my 1990 Volvo Wagon (740 GL 210k miles) simply cut out. ... A: Ray, sounds like a possible timing belt breaking but without examining the car, I would only be ... | ||
| s90 parts interoperability and Chiltons. | 5/7/2009 | Roger Patricio |
| Q: Love your answers! I enjoy my 1998 s90, and at 150K, she's running strong. I understand the model ... A: Mike Most stuff from the 960's will fit the S90 except fuel system and ignition. Motronic 1.8 ... | ||
| Defroster - 1989 Volvo 240 | 5/5/2009 | Roger Patricio |
| Q: Defroster on my 1989 Volvo 240 DL has stopped working (also the "floor air" button doesn't work now) ... A: Bruno, it may be the relay but most likely its the unit inside the glass. Floor air is probably a ... | ||
| abnormal charging | 5/5/2009 | Roger Patricio |
| Q: 1998 S40 2.0T. I have a voltage recorder hooked to cigarette lighter socket. After the engine ... A: Brett, well anything AC delco is nothing but junk so that is the first thing to get rid of and find ... | ||
| "Service" Light on Dashboard | 5/5/2009 | Roger Patricio |
| Q: Roger: You were such a big help to me with my recent headlight wiper arm problem (all fixed now, ... A: Ed, you can do this. Follow these steps. Go to the 2 little blocks by the washer resevoir. REmove ... | ||
| Volvo 850 Wagon Seat Back rest repair | 5/5/2009 | Roger Patricio |
| Q: I have a Volvo 850 GLT Wagon (1995 make). Recently, I gave the care for a repair and the mechanic ... A: Geet, I would let a Volvo shop handle this one. The seat cable needs to be repaired. Its a common ... | ||
| Volvo V70 year 2000 erratic temp gauge | 4/29/2009 | Mark H. Mathis |
| Q: my V70 1st of the new shape, is coming up with erratic temp gauge readings all is fine then it drops ... A: Sorry this is late. I had an unexpected surgery and will be out for a while. Nigel, first ... | ||
| 1992 240 tail light assembly | 4/29/2009 | Mark H. Mathis |
| Q: The right side tail light assembly will not work. There is no corosion, and the bulbs are good. The ... A: I'm sorry it took so long to get back to you. I had an unexpected surgery and will be out a ... | ||
| the turbo on my volvo 740 1989 holds back at times | 4/29/2009 | Mark H. Mathis |
| Q: I buoght a 740 with 164000miles on it. It runs well but at times the turbo doesnt seem to work. The ... A: I'm sorry it took so long to get back to you. I had an unexpected surgery and will be out a ... | ||
| 1997 Volvo S90 - timing belt | 4/28/2009 | Mark H. Mathis |
| Q: A local repair shop just warned me that my timing belt (last changed at 71K) would soon need to be ... A: So sorry for the late reply. I had a surgery and will be out for a while. Yes, do the water pump. ... | ||
| Cracked shift selector grip | 4/28/2009 | Mark H. Mathis |
| Q: I have a 1996 960 wagon with an automatic transmission. The rubber grip on the shift selector has ... A: So sorry for the late reply. I had a surgery and will be out for a while. Relace it only. ... | ||
| '98 XC 70 - slow speed shutter/wheel movement | 4/27/2009 | Mark H. Mathis |
| Q: from Canada..read all your tips. First time XC70 owner (Maybe last) cannot diagnose front wheel ... A: So sorry for the late reply. I had a surgery and will be out for a while. I know this sounds ... | ||
| A/C Low Pressure Valve | 4/26/2009 | Mark H. Mathis |
| Q: I have had a 1998 V70 Wagon sitting for a year or so and just got it back into operating condition. ... A: Follow the fat line coming out of the evaporator at the firewall until you find it. Sorry, I ... | ||
| Noise coming out from radio/cd player | 4/26/2009 | Mark H. Mathis |
| Q: I've got 1996 850R and had a problem with stereo. If it's connected there will be a squealing ... A: Paul, bad diode in the alternator causes this problem. I know you replaced it, but are you sure ... | ||
| 1995 volvo 960 | 4/25/2009 | Mark H. Mathis |
| Q: no spark. coils power up during key cycle. new crank sensor. good crank sensor and camshaft sensor ... A: Awwww, this is more like it. A real question with testing done and everything! VBG (good ... | ||
| Camshaft positiong 98 volvo V70 | 4/25/2009 | Mark H. Mathis |
| Q: Is there a way to install the camshaft without the use of the cam positioning tool? I had to have ... A: Seth, if you did not mark everything well befroe you took it apart, you are screwed. You will now ... | ||
| Lube Job | 4/24/2009 | Mark H. Mathis |
| Q: I have a 1970/71 Volvo 144S and i am wondering if i need to get a lube job done. I have been having ... A: Terry, the nipples you refer to are called grease zircs. In the good ole days, ask dad, an oil ... | ||
| 1993 Volvo 940 fuel gauge and temp gauge out | 4/24/2009 | Mark H. Mathis |
| Q: My fuel gauge reads empty (with no light) most of the time, but can sometimes go to 3/4, regardless ... A: Yes, it is simple. Usually, just replace the entire circuit board for the guage assembly. It is ... | ||
| Troubleshooting Start Up Problems | 4/23/2009 | Mark H. Mathis |
| Q: I have a 91', 4 cyl., Non turbo Volvo 740. I recently encountered difficulties starting the car ... A: Ok, I would start with putting a set of mechanical fuel pressure guage on the vehicle. Observe the ... | ||
| Top engine mount | 4/22/2009 | Mark H. Mathis |
| Q: my 2001 Volvo S80 needs the top engine mount replaced. I've gotten a quote for $350.00 but it seems ... A: Easily. You can get just the bushing and do not have to replace the entire arm. If you buy an ... | ||
| 98 S70 T5 electrical problems | 4/21/2009 | Mark H. Mathis |
| Q: Drove the car Sunday and started fine and electricals all worked. Drove Sunday night and car started ... A: Not the ignition module. That only deals with the ignition (spark) system. Look at all the ... | ||
| 1990volvo740turbo | 4/20/2009 | Mark H. Mathis |
| Q: no pulse at injectors ANSWER: Bob, not much to go on here. What have you checked? A very common ... A: Bob, Great, you have Alldata. The first thing you need to do is look at all the fuses and be sure ... | ||
| 1990volvo740turbo | 4/20/2009 | Mark H. Mathis |
| Q: no pulse at injectors A: Bob, not much to go on here. What have you checked? A very common problem is the radio noise ... | ||
| 93 Volvo 940 | 4/20/2009 | Mark H. Mathis |
| Q: Ihave a 93 Volvo940 with a B230F eng w/ a regina system. The radiator fan does not come on and as a ... A: Phill, one of two things, you got a bad replacement sensor or it's the wrong temp. Or, your ... | ||
| 98 Volvo v70 | 4/19/2009 | Mark H. Mathis |
| Q: My 98 Volvo V70 will intermittently stall. It does not matter what speed or load. It quits for ... A: William, here we go now. "The code displays emissions leak (large)" and this "It stalls as if the ... | ||
| 98 v70 obd codes | 4/18/2009 | Mark H. Mathis |
| Q: p0116 engine coolant temp ckt range/perf. I did notice a small antifreeze drip front passenger side ... A: Nick, three seperate issues here. P0116 is usually a bad sensor, wire or connector. P0410 is ... | ||
| '88 760 turbo A/T - ignition key won't turn | 4/18/2009 | Mark H. Mathis |
| Q: key won't turn - another expert suggested that steering column must be replaced but also mentioned ... A: Do you have another key? Try that if you do. If you don't have a second key, this might be a a ... | ||
| 98 Volvo v70 | 4/18/2009 | Mark H. Mathis |
| Q: My 98 Volvo V70 will intermittently stall. It does not matter what speed or load. It quits for ... A: William other than checking the basics, you need to have it set a Diagnostic Trouble Code before ... | ||
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Mark H. Mathis
Top Expert on this page
Expertise
All drivetrain, powertrain, suspension, electronics, body, brakes,SRS and general. Weakest in automatic transmission disassembly and repair.
Experience
1979-2004 owned and operated Automen Inc. Specialized in import vehicles only. Master of Euros. Audi, BMW, Saab, Volvo, VW, Jag., Porsche, Mercedes, MG, Triumph and some Alpha/Fiat. Very strong in Asian. Weak on Domestic.
Organizations
ASE, IATN, BBB, NWYC, SBA.
Publications
IATN, RAMAC
Education/Credentials
ASE Master Tech. 30years. L1, CMAT
Awards and Honors
3 healthy beautiful and smart children
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