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Prev Professional Automotive Repair Technical Discussions for March 16, 2005
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Open Help Requests for GM
Help Request Answers
1999 Cadillac Seville STS 4.6L dash VIN: 1G6KY5498X
Hello this car came with the complaint of noise in the dash upon inspection I have narrowed it down to the dash the car does not need to to be running just key on only does it when its cold sounds like a balast in a flourecent light after fifteen minutes or so...
1993 Chevrolet Lumina 3.1L No Start VIN: 2G1WL54T2P
Car came in 2-months ago on hook W/blown ECM/fuel pump fuse. Replaced fuel pump and fuse. This lasted untill a week ago, blown pump fuse. Replaced relay and oil sender. This lasted one day. Car has never died. It has happened both warm and cold. The only warni...
1995 Chevrolet Cavalier 2.2L Surge, MIL Lamp on VIN: 1G1JC1242S
This thing is driving me nuts. It runs perfect in open loop but when loop closes many of the numbers on the scanner change. The engine still runs well untill you drive then decel or brake. As soon as you start braking the engine starts to surge. When you come ... Trouble codes: 35 (IAC error)
1995 Chevrolet Astro 4.3L abs module VIN: 1GBEL19WXS
just did front brake job with rotors and pads, upon test drive noticed front brakes would not release. if i crack the line on the output side of the proporioning valve nothing changes, if i crack it at the out put of the abs module it will release the brake. l...
1996 Chevrolet C1500 5.7L Misfire
First how are all you guys doing. I hope you are doing better than me and this truck that I am have a heck of a time with. First this truck was a 4.3 and the customer had somebody else drop 5.7 in it. customer states truck ran fine for a few days and then sudd... Trouble codes: P0304, P0300
1992 GMC Motor home 454CID No Start, Stall VIN: 70N6322373
Hi again, thanks in advance for ay help. I'm posting about this motorhome is a thorn in my side that never goes away!!! In related repair history, there is the origanal post for a problem that was fixed with a new computer, now it will stall and no...
1994 GMC Jimmy 4.3L No Start
Received this 1994 GMC Jimmy used from a private owner. Never mentioned extremely hard to start cold problem but did note that he had replaced injector, fuel filter, tp sensor. It will crank for a good 10 seconds (when battery lasts) before starting. Usually s...
1999 GMC Yukon Denali SLE 5.7L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GKEC13R0X
Hi there, The customer had it towwed in from another shop. They repaired what was supposed to be noisy lifters due to low oil pressure. My understanding is they replaced all lifters and the oil pump. They could not get it started and eventually called the cu... Trouble codes: P0339 (Crankshaft Position Sensor Circuit Intermittent), P0340 (Camshaft Position Sensor Circuit)
1991 Oldsmobile Cutlass Supreme SL 3.1L No Start, Poor Idle Quality, Misfire VIN: 1G3WS54T7M
vehicle came in with a not start after heat soaking. this would happen about 10 minutes after driving for a couple of miles.when the vehicle was running it did have a noticeable miss.vehicle would crank but not start.replaced the crank sensor.replaced the igni...
1997 Oldsmobile Achieva S 2.4L No Start VIN: 1G3NL52T5V
NO START - Cranks, but will not run when extremely cold, usually below zero. May happen every day or not for a month. Occasionally will happen at any temperature, but usually if car sits outside overnight. Has no spark, no injector trigger, fuel pump runs. No ...
1998 Oldsmobile Silhouette Premiere 3.4L Door Locks VIN: 1GHDX03ETW
The power dook lock will not work. I have tested the grounds and the power. It seem to be that the lock side of the switch it not getting power. Can you help?
1999 Oldsmobile Alero GX 2.4L gauges and heater VIN: 1G3NK52T3X
This 99 alero has a promlem with the gauges and heating system. They will intermittently cut out. The tach, speedo, fuel and temp gauges will drop to zero. The blower motor will cut out as well the rear rear defroster will not function. These things will happe...
1993 Pontiac Grand Prix SE 3.4L Hesitation, Cuts out, Stall, Misfire
Thanks in advance for any help I can get. The situation is that the vehicle was driven for two years running poorly and now the customer has money to repair it. Intake gaskets replaced due to vacuum leak and plugs and wires replaced for tune up. On accel or j...
2002 Saturn SC2 1.9L Stall, Misfire, MIL Lamp on VIN: 1G8ZY12712
Hello, This vehicle was towed in because it would crank but not start. The customer said the MIL light had been on for 2 weeks. It had been starting hard, then would run rough and then stall. It finally failed to start and it was towed. We replaced the plugs, ... Trouble codes: P0341 (CMP Out Of Range)

Fixes & Summaries for GM
Fix/Summary Answers
1996 Buick Regal 3.8L RPM Limiter VIN: 2G4WB12K3T
Most of you chastised me for even requesting help request for customer to drive faster and I offer no defense except laspe in judgement. I was directed to contact customer programing company listed in back of Hot Rod. Thanks for the info and I now bow under pr...
1999 Cadillac Seville STS 4.6L ignition VIN: 1G6KY5496X
thanks,for all the replies and Idea's The intermittent miss fire, turned out to be the #1 & #8 fuel injecotrs did need to be replaced The cars runs great now Thanks again for all the imput
1996 Chevrolet K1500 Suburban 5.7L no tach, speedo or shift indicator VIN: 1GKFK16R6T
Thanks to all who responded, 10 out of 11 replys said most likely cause is bad ign. switch. trans fuse also sends power to tach, speedo and shift indicator. Most replys said the ign switch is the weak link in the system. Car is NOT fixed due to extreame custom...
1997 Chevrolet Express 1500 5.7L Fluid Temp, brake switch, pressure switch VIN: 1GBFG15R4V
After 4 days of pulling our hair out, we sent the van back to the shop that programmed the computer for us. They scanned it with the Tech 2 and showed nothing wrong with the vehicle. We used 3 different scan tools at our shop when we diagnosed, all running Pat...
2001 Chevrolet S10 4.3L No Start VIN: 1GCCT19W31
Aran [...] has hit it on the head. He communicated with me three times(what a guy!) Many wanted to condemn the PCM computer under the hood since it had been underwater since I couldn't get the theft signal loss to reset. But it was the BCM(body Module) locate... Trouble codes: P0102 (Mass or Volume Air Flow Circuit low input), P1626 (Theft Dterrent Start enable signal), P1637 (Generator L-Treminal Circuit).
2002 Chevrolet Venture LS 3.4L Passenger side rear electric door VIN: 1GNDX03E12
Thanks for all the great responses to my problem. I do not know if we will ever figure out how to reset this motor assembly/ The salvage yard motor had cables all bound up inside so we could not get it to work. Niece decided to try to find another one at salve...
2002 Chevrolet Avalanche 1500 5.3L Poor Idle Quality, Cuts out, Stall VIN: 3GNEK13T42
Found bad wiring at connector for iac. They were broken in side weather packing. When i unplugged to test they would make contact and all was well. Hard find.
1991 Geo Prizm GSi 1.6L MIL Lamp on VIN: 1Y1SL5450M
I did receive a few replies but none really helped. Maybe i was not real clear about things. But what I did receive was things i have already checked three or four times and also had another technician friend from another shop do some testing to double check t... Trouble codes: 21 (oxygen sensor circuit/open or short circuit).
1988 GMC C1500 Sierra 6.2L transmission VIN: 1GTDC14KJZ
thanks to all who took the time to respond to my help request, it is very much appreciated. turns out some of you were spot on,although all of you were helpful. the issue was the egr valve opening too much too soon. we got it handled, we are happy, customer is...
1992 GMC Jimmy SLE 4.3L Hesitation, Surge VIN: 1GKDT13W5N
after i finally found time to take a look at the jimmy, i found out that the ignition module was no good. after replacing the module time was fix, power was half back but not fully. going to have to wait till get another chance. that for all the help.
1999 GMC Jimmy SL 4.3L start and stall VIN: 1GKDT13W3X
Thanks for the help. I had serveral returns for fuel presure and anti theaft system, I have checked both and preformed relearn with no success. I am going to close this case for now, it is a used trunk on our lot and may have been sold as is. again thanks fo...
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