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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 18, 2005
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Open Help Requests for GM
Help Request Answers
1996 Buick Skylark Limited 3.1L Cuts out VIN: 1G4NJ52TXT
Hello all. I'm posting this vehicle for another tech so I've gathered as much info from him as possible. The vehicle came in about a month ago for intermittently stalling out while driving down the road. According to the customer, when the problem happened it ... Trouble codes: P0600 (PCM communication problem)
1999 Buick Regal LS 3.8L service engine soon and airbag lights on VIN: 2G4WB52K5X
Hi guys, the "service vehicle soon" lamp is staying on and the airbag light stays on. Cleared airbag B1001 code; airbag light goes off but SVS lamp stays on. Is there anything else contributing to this? There are no engine/powertrain codes, but there is a B100...
1996 Cadillac DeVille 4.6L struts VIN: 1G6KD52Y2T
Struts are worn out on this car; does anyone make a non-electronic replacement? Thank you, everyone.
1997 Cadillac DeVille 4.6L Charging VIN: 1G6KD54Y1V
Okay Guy's & Gal's, Got this northstar Caddy in customer say's Battery light on for long time (2-3 minutes) after start up, Verafied complaint,it won't charge unless ya let it run for a while, But I discovered if I goose the throttle pretty hard once or twice ...
1980 Chevrolet Camaro 5.7L pcv VIN: 1P87LAN424
Hi, and off-beat discussion. Hav a 555cid Chevy, Bowtie Blk, Brodix Alu Heads, etc. 10.5:1 CR., Dual BG Dominators, JE Pists., Jesels, etc. Race/Street engine in car I recently bought and just put on road.Have other "race" engines/cars up to 632 and 15:1 CR bu...
1991 Chevrolet K2500 Cheyenne 5.7L Poor Idle Quality, Stall, Poor Fuel Economy VIN: 2GTFK29KIM
hooked up Tech 2 , had data at first then nothing tried Tech 1 same problem. Vehicle has super chip ??? Has anyone had problems with superchips ??
1994 Chevrolet K1500 5.7L Poor Idle Quality, Stall, Misfire VIN: 2GCEK19K1R
this truck has a missfire mostly at idle and when it does it the tach in the cab jumps or drops. the vehicle has a new distributor assy with module and the problem is still there. it does seem to be alittle better if the bypass wire for the timing is disconnec...
1997 Chevrolet Corvette 5.7L instrument panel message VIN: 1G1YY22G0V
I need help with this one-instrument panel displays SHOCKS INOPERATIVE, MAXIMUM SPEED 80 MPH, SERVICE RIDE CONTROL, SERVICE VEHICLE SOON- the problem is that this Vette never had RTD/electric shocks , there are two PCM non light triggering codes in memory; P15...
1997 Chevrolet S10 4.3L MIL Lamp on VIN: 1GTCS14X1V
high guys, got one, 1996 chevy s10 pick-up, 4.3l v6, obdII. cal. emissions. truck runs good. no customer complaint other than an occasional service engine soon lamp comimg on. no loss of performance or poor fuel mileage either. truck never stalls. scanned memo...
1998 Chevrolet Prizm 1.8L No Start VIN: 1Y1SK528XW
Looking for some insight on this 98 prizm, towed in for a nostart, plugs fuel soaked, car has great spark, 140lbs compression, no exhaust backpressure, good injector pulse, I removed the valve cover and inspected timing marks, all marks line up fine, next chec...
1999 Chevrolet Blazer 4.3L No Start VIN: 1GNCT18W9X
Ok People I'm ready to toss in the towel.I have this Chevy Blazer that was towed in to our shop with a Crank no Start.First inspection and talking to the customer she states it will not start if the temperature drops below 30 degrees.Well when it arrived at th...
1999 Chevrolet Astro 4.3L Surge, Misfire, MIL Lamp on VIN: 1GNDM19W8X
Customer has brought van in 3 differnt times, complaining of shudder/misfire at highway speeds (freeze frame shows 56-60 mph)usually first drive of the morning. The only obvious data that shows out of range is the cam retard- Scanner shows -16 degrees. Once co... Trouble codes: P0300 (Random misfires)
2000 Chevrolet Prizm 1.8L dome light fuse VIN: 83YZ431700
Hello. I have a prizm with a .71 amp drain on battery(spec. .25amp). The drain is coming from the dome fuse. I have removed the bulb in trunk and dome with no change. I have unpluged the chimer module, and instrument panel with no change. It has no remote ent...
2000 Chevrolet S10 2.2L oil psi VIN: 1GCCS1943Y
I have checked oil psi it has 60 psi cold at idle. When warms up it drops to 8psi and has a knock noise from bottom of pan. It will go up to 55 but still seems to knock. GM says 56psi at 3000 rpm. I just curious to other peoples findings on this motor. I am pr...
2001 Chevrolet Silverado 1500 4.3L No Start, Cuts out, MIL Lamp on VIN: 2GCEC19W21
customer complained of hard start hot or cold,misfire or buck at highway speeds intermittantly.performed tune up service. customer returned with same complaint. retrieved fault codes po300. noticed scan data indicating cam offset at -11 degrees. performed cran... Trouble codes: P0300
1997 Geo Metro 1.3L no communication w/ obd2 VIN: 99V6750409
After engine replacement vehicle would not start, cranks ok. checking for spark, I find that only one spark per plug, per crank cycle is present. definitely not enough spark to start this beauty. no communication to obd2, so I have no way of checking for troub...
1989 GMC K1500 Sierra SLE 5.7L No Start VIN: 1GTDK14K6K
Hello fellow techs, I hope someone can help me a little on this truck. At time it has a no start condition. I have only experianced this once and that was at the customers house. Every time I get the truck to the shop it starts and runs for me. I have determin...
1998 GMC Jimmy Envoy 4.3L mode door VIN: 1GKDT13W1W
Hello to all, I posting this question to hopefully find a fix, for this problem, I have been replacing a lot of broken mode doors on S10's and Jimmy's,at least twelve in past year, problem is the mode door keeps breaking, nothing has been interfering with the ...
1994 Pontiac Firebird Formula 5.7L Hesitation, Surge, Cuts out, Stall, Poor Fuel Economy VIN: 2G2FV22P1R
6 speed trans was removed for overhaul. While out, plugs were replaced as routine service at 90,000 miles. After reinstalling trans, the car has since had a significant miss, stumbling worse when hot. Idle is slightly rough, and driving power is decreased as w... Trouble codes: 15 (low coolant temp reading -40)
1999 Pontiac Grand Prix SE 3.1L daytime runnig light, blower motor VIN: 1G2WJF2M2X
Daytime running light go out when blower switch is tuned to first 4 setting, blower resistor has been replaced, fuses are OK, power at switch, grounds OK, blower switch test OK, power though resistor with motor unhooked, plug in motor power is lost, lights go ...
2001 Saturn SL1 1.9L Misfire, MIL Lamp on VIN: 1G8ZH52821
replaced plugs,wires.Hear popping sound thru exhaust. No hard miss. Possible fuel mixture miss? Any encounter of any kind on this? any help appreciated Trouble codes: P0300, P0301

Fixes & Summaries for GM
Fix/Summary Answers
1989 Cadillac Fleetwood 4.5L Excessive Emissions, Poor Idle Quality, converter glows red VIN: 1G6CB5153K
OK all. This fix amazes me almost as much as the symptoms that led to it. Basically, the glowing catalytic converter and high idle were (I THINK?)the results of the same problem. The PCMs dissatisfaction with the minumum idle speed/excess air/a vacuum leak. ...
1996 Chevrolet K2500 Cheyenne 5.7L Cuts out, MIL Lamp on VIN: 1GCGK29R7T
Thanks to all that responded to my question. I found out after I posted the help request that my back pressure tester was faulty and after that tool was fixed we had back pressure of 1.5 psi max. The next day when I went back out to the truck it would not star... Trouble codes: P0131, P0140, P0151, P0155, P0157.
1997 Chevrolet Blazer 4.3L sift sol.A, shift sol. B,etc. VIN: 1GNDT13W0V
ignition switch was intermittent throwing various shift solenoid codes. Replaced switch and it is ok.
1999 Chevrolet S10 2.2L Surge VIN: 1GCCS1440X
Well I replaced the crank sensor with no help at all. I have ran into things like this that make no since before and it turned out to be the ECM.I bought a ECM at a dealer and had it flashed. This thing runs like new now. I want to thank everyone who gave me r...
2000 Chevrolet Impala 3.8L No Start VIN: 2G1WF55K3Y
Sorry for the delay in posting the fix for this car. I wanted to be sure we had it definately fixed. We had checked the fuel pressure regulator for leakage numerous times before requesting help. Every time the regulator was checked, there was no leakage presen...
2000 Chevrolet Camaro 5.7L Mechanical VIN: 2G1EFP22G0
Thanks for all the replies. The customer has decided not to repair the car at this time. Will wait for some time this summer.
2003 Chevrolet Silverado 3500 LS 6.6L Cuts out VIN: 1GBJK39183
This truck is fixed.after working like a fool on and off for a week,i went back to basics. the truck had good fuel pressure at idle this is the only way i was checking it.when i drove down the road, pressure would drop off.i changed the fuel pressure regulator... Trouble codes: U1024 (u1041-), U1041 (u1800-), U1800 (u0089-), U0089 (u0087-), U0087 (Po700-), P0700.
1994 Oldsmobile 98 Regency 3.8L MIL Lamp on VIN: 1G3CX52L2R
vast majority of replies said to use OEM part. couple people said to check for coolant weeping through tbi gasket, this does not appear to be the problem. so we put an OEM sensor in it and will wait to see if it goes bad as well. thanks for all the reponses. b...
2001 Pontiac Montana 3.4L Traction con VIN: 1GMDX03E91
Thanks all that replied.We replaced the right side lamp socket assy and connector.The new socket assy has brass contact at the ground terminal instead of aluminum that was on the old one.Iguess the new assy is an updated part.
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