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Professional Automotive Repair Technical Discussions for September 21, 2005 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 1991 Buick Riviera Luxury 3.8L Surge, Cuts out, Misfire VIN: 1G4EZ13L7M when this car is fully warmed up, especially when hot outside, during steady cruise or slight acceleration with torque coverter clutch engaged, it will surge at approximately 1600-2000 rpm. this is the only time i can get it to act up. it feels like it could b... |
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| 1992 Cadillac Eldorado 4.9L starter VIN: 1G6EL13B9N i can not fine the starter relay,.where is it. [think you.] |
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| 1997 Cadillac DeVille 4.6L compressor VIN: 1G6KD52Y5V Had low refrigerant message. AC inop. If command Auto operation would immediately revert to Econ and blower would not even function. Reclaim 1 pound of refrigerant. Recharge with required 2#. Access codes on DIC. Clear codes. No compressor activation. Test p... |
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| 2001 Cadillac DeVille DTS 4.6L traction control VIN: 1G6KF57991 to all valued techs have code c1295 stop lamp switch open ,it only hapens if you have your turn signals on . have replaced stop light switch (one with white wire bottom switch),hazard/turn sig/flasher module ,both rear tail light assembly's.what is happening... |
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| 1986 Chevrolet Celebrity 2.8L vacuum pump VIN: IG1AW19W5G The brake system has an auxilliary electric vacuum pump mounted behind bumper foward of left front wheel well. I have tried & tried to locate a new, used or rebuilt pump, even sent old pump to CARDONE for rebuilding, they sent it back. Dealer doesn't service i... |
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| 1993 Chevrolet S10 4.3L Stall VIN: 1GCDT1928P this truck will quit intermittenly and restart no problem checked pickup coil okay tap test computer okay any help would be great |
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| 1997 Chevrolet K1500 Cheyenne 5.7L power steering VIN: 2GCEK19R7V Vehicle came in with no power assist. Replaced pump with aftermarket rebuilt which appeared to work. Before picked up, pump would not turn steering at idle. No pressure test as I do not have pressure set up. Fluid was changed. Vehicle has EVO but everyone I ta... |
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| 1996 Geo Prizm LSi 1.8L Hesitation, Cuts out, Misfire VIN: 1Y1SK526XT This car will run great cold. Once it warms up to full operating temp you try a hard acceleration and cuts out in the 3,000+ rpm range. It doesn't matter if you are driving down the road or in the service bay it will still cuts out. - tried disconnecting the e... |
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| 1995 GMC C3500 Sierra SLE 6.5L Poor Fuel Economy, gutless VIN: 1GDKC34F5S Hi ,we have a 95 GMC ramp truck that seems to enjoy eating computers.It had a check engine light on a while ago (year)for wastegate solenoid problem, I checked the connector and found good 12V supply but no ground from the PCM.The wiring checked out good as di... Trouble codes: 78 (wastegate solenoid problem) |
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| 1990 Pontiac Grand Prix SE 3.1L Poor Idle Quality, Hesitation, Surge, Stall VIN: 1G2WJ51T2L THIS PONTIAC CAME TO US WITH A DRIVABILITY PROBLEM THE CUSTOMER SAID THAT IT JUST DID A 400 KILOMETER TRIP AND IT DROVE LIKE A NEW CAR(check the mileage) THE MORNING AFTER THE TRIP THE CAR STARTED TO STALL IF YOU EXCELORATED OVER 25 KM PER HOUR OR IF YOU TRIED... |
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| 2000 Pontiac Grand Am SE 2.4L suspension VIN: 1G2NF52TXY HI everyone i need some info on this grand am we have seen a lot of these that clunk while turning at slow speeds , it does not matter witch way This customer wants it fixed most will just ignore it if anyone has found a fix for these please let me know Thanks |
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| 2000 Saturn LS2 3.0L No Start, Cuts out, MIL Lamp on VIN: 1G8JW52R1Y This car was towed in. When started to work on it,the car started up without a problem. Customer stated the car cutoff on them the other day. they left it for awhile,and when they returned,the car started. this happened a couple of times. I have no information... Trouble codes: P0727 (engine speed), P1780 |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 1988 Buick Reatta 3.8L Signal Lights VIN: 1G4EC11C4J Thanks Dave and Rod for your tips. I did check the charging system and Battery and everything seems to work fine. I still figure the 'turn signal alert module' may be the best guess but we have not found a used one yet. The vehicle is a rare breed around here.... |
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| 1991 Buick Regal Custom 3.8L No Start VIN: 2G4WB54L2M the fix was a new ecm like everone said thank you all jim |
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| 1995 Buick Riviera 3.8L Charging VIN: 1G4GD2215S Thanks to all. I recieved a location for the thermistor 5 minutes after posting and some pictures later in the evening. It is easy to spot but it is very inconspicuous. it attaches to the positive battery post and lays against the battery. I saw the 2 small wi... |
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| 2000 Buick Regal LS 3.8L HVAC Display VIN: 2G4WB52K2Y I would like to thank Paul and Steve for their information on how to repair and for the lense discolouration (manufacturing process). Larry [...] was the most helpful in describing what and where to resolder the circuit board and even provided a website with th... |
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| 1992 Cadillac Seville 4.9L air cond cooling VIN: 1G6KS53B7N thanks for the help i replace the instrument cluster (ipc) works like it was designed |
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| 1988 Chevrolet S10 2.8L Hesitation, Surge, Stall VIN: 1GCDT14R5G Dear techs: I recieved a lot of good replies on this one; thanks to all.This truck is fixed! I really feel stupid about the fix, but at least it is fixed! Paul [...] reply is what lead me to the fix. I thought I was monitoring fuel pressure carefully, but I w... Trouble codes: 32 (EGR problem), 45 (rich exhaust), 44 (lean exhaust). |
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| 1989 Chevrolet K1500 Cheyenne 5.0L Cuts out VIN: 1GCDK14H3K Sorry to keep you waiting, problem with 89 chevy pickup ( cuts out and jerks with cruise control ) is not fixed ! Customer needed truck to move parents and we will relook at things next service. I can say that cutting out and jerking only happens with cruise... |
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| 1993 Chevrolet K2500 Cheyenne 6.5L engine VIN: 1GCGK24F7P Well after a long battle this one is finally fixed. Many who replied suggested the boostpump/oil pressure switch. This pump was not working we replace the oil pressure switch and the pump did work after that. However the truck continued to run rough, replaced ... |
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| 1994 Chevrolet Lumina APV 3.1L Cooling Systems VIN: 1GNDU06D8R Well, we didn't find the exact cause of the overheating. We checked the thermostat and replaced it, even drilled holes in it to release vapors. Replaced the water pump, case checked out good. Because of the overheating and the extreme rough idle, we suspect a ... |
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| 1996 Chevrolet K2500 Cheyenne 6.5L 4th gear drops out VIN: 1GTGK29F5T Well I had 9 replies mostly vave body issues.I told the tech to get a valve body kitt from a company I beleive their name was sonnax.It required pulling the trans to access the pump to install a updated valve which he wasn't to happy to here about,but hey welc... |
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| 2001 Chevrolet Malibu LS 3.1L No Start, theft light flashes VIN: 1G1NE52J01 Thanks for all the replies. Almost everybody gave the same answer. The passlock cylinder and sensor. I believe it is getting worn. However, I left the key on for 10 minutes and the theft light went off. Then the car started. I informed the owner that it needed... |
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| 1991 GMC C2500 Sierra 7.4L Excessive Emissions VIN: 1GTGC24N5M the egr solenoids that we got from ac delco were defective. the third solenoid finally worked. the egr is operating fine and the vehicle passed smog. thanks for all the help |
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| 1996 GMC C1500 Sierra SL 5.7L Electronic VIN: 2GTEC19R7T Talked to trans. shop and borrowed his trans X 2000 machine and ran transmission on that and still had same problem. sent to trans shop they opened it up and found one sprag completely blew and the insides where toasted. just an unlucky coinsidence. but I stil... |
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| 2000 GMC Yukon SLE 5.3L low beam headlamps VIN: 1GKEC16T31 tried reading bcm with a different scan tool and found ambient light sensor code, checked sensor-it's bad, replaced and all works fine, not sure but it seems bcm has drl light module in it. |
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| 2001 Pontiac Montana 3.4L Rear A/C Lines VIN: 1GMDX03E21 Mixed bag replies on this one... The customer will come next month to have the lines repaired. I will try TWO different ways to repair the lines. First: Low temp 'Perfect Braze' kit. Second: Compression fittings with O-rings and small shot of epoxy on the fitt... |
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