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Prev Professional Automotive Repair Technical Discussions for December 3, 2008
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Open Help Requests for GM
Help Request Answers
1995 Buick Riviera 3.8L No Start, Stall VIN: 4GIG1871OG
this one is beating me up.after around 20 min.of driving vehicle will stall,wont restart at times ,hook up a tech 1 and it will restart and run again?? set up a snapshot and screen will go blank after a sort of leaning towards an ign.switch. someti...
1999 Cadillac Seville STS 4.6L Suspension VIN: 1G6KY5496X
HI everyone.This STS came in with bad front shocks.We converted them over to gas shocks and installed the resistors for the damper actuator.Now we are getting a code C1171(LF damper actuator short ckt to ground).I checked the fuses and looked to see if there w...
2003 Cadillac DeVille 4.6L Stall, MIL Lamp on VIN: 1G6KD54Y53
Howdy there, This is the Moms car, it came in because the check gas cap light was on. Capture data shows it had been stalling, she remembered that later. We checked it and the guy who installed the air filter left the maf hanging by the coupler. I read where a... Trouble codes: P0102 (maf sensor frequency low), P0386, P0385, P0440, P0336, P1372
1994 Chevrolet C3500 Cheyenne 6.5L Stall VIN: 1GBKC34FXR
Problem child stalls.No codes found current or historical.Scan data looks normal accept temp higher than what it really is about 100 degrees,I know this is not normal but i do not know why,Sensor replace with same readings.This truck will stall and restart som...
1995 Chevrolet K2500 Cheyenne 5.7L hard shift into 1st VIN: 2GCFK29K7S
this is a personal vehicle. when it is put into drive it slams into gear, all other shifts are ok. this is the second replacement transmission with the same symptom. its unlikely that it is an internal problem but we open to any help you guys can offer. happy ...
1998 Chevrolet Camaro Z28 5.7L MIL Lamp on VIN: 2G1FP22G4W
ck. engine light flashes at cruise or under load sets misfires on #1 &#6 cylinders when light flashes only. engine runs good with no misfires felt when driving. have checked all powers & grounds at pcm & removed all grounds at engine, cleaned paint & reinstall... Trouble codes: P0300
1999 Chevrolet S10 LS 4.3L distributor VIN: 1GCCS19X5X
hey guys,thanx in advance, ive got this s10 with a no start condition ,found tsb on dis,gear wearing out so it will cause the cam to retard so i removed the hold down bolt and advanced it manually ,truck started and ran fine so i got my diag, well we ordered t...
2002 Chevrolet Tahoe LS 5.3L oil, and compression rings VIN: 1GNEK13Z02
I have a 2002 Tahoe that was towed in that would run when first started. It would drive for about 3 miles befor loosing all power. In the shop after in had warmed up it would miss and stall. The only codes were a p0300 and a p0101 maf sesor out of range. I rep...
2002 Chevrolet Silverado 1500 5.3L Starting VIN: 2GEC19V521
Truck came in with random no starts. Customer stated they could move gear selector in and out of gear and vehicle will eventually start. Replaced nuetral safety switch and also connector coming to switch.(connector had been glued into old switch.) Truck left...
2002 Chevrolet Silverado 2500 HD 6.6L Cylinder Head Surfacing VIN: 1GCHK29162
We have a Duramax with a blown head gasket, the sealing ring has dug into the aluminum on both heads requiring surfacing to the tune of approx .010". Does anyone know why GM recommends "do not surface" Duramax cylinder heads.
2004 Chevrolet Impala LS 3.8L gauges VIN: 2G1WH52K24
hi guys i have a 2004 impala when i start the car the speedo sweeps to 120 mph and stays there i have power and ground at the dash and on the scanner the computer reads what the speed sensor shows as the speed but the gauge is always amt 120 mph. when i shut t...
2005 Chevrolet Trailblazer EXT LS 4.2L fuel guage and airbag VIN: 1GNDS13S35
Hello my friends at iATN.I have this problem that is needing of your wisdom and insight.This customer has had this vehicle at the dealership on several occations and they could not fix it. The fuel guage is intermitant as well as the speedo but not at the same...
2007 Chevrolet Silverado 3500 Classic LS 6.0L Charging VIN: 1GCHK34U37
customer had to jump start, battery was dead, we charged battery, charging system and battery are good but when testing for drain on battery we have a relay in rear door pillar on drivers side that is clicking rapidly. relay has large brown wire, large orange ...
2007 Chevrolet Equinox LT 3.4L a/c VIN: 2CNDL63F77
Thanks in advance. Does anyone have the refridgerant capacity for this model? Tag was destroyed in the hit. The body shop brought it over with all the info they could gather for me.
1987 Oldsmobile Delta 88 Royale Brougham 3.8L No Start VIN: 1G3HY5437H
well people here is a real stumper.. please help im loosing my mind and starting to doubt my mechanical skills. this car came to us on the hook with a no start problem, other shops have installed parts and so have we.the car has no spark and does have noid and...
2000 Oldsmobile Bravada 4.3L tccm VIN: 1GHDT13W0Y
I know I need a new TCCM, just looking to see if there is anything common to cause a failure of the module. Thanks to all that reply!
1992 Other GM school bus 360CID 1st gear VIN: 1HVBBHPP8N
Good afternoon everyone. This bus has been well maintained and is used in a church bus ministry. The main complaint is that it is very sluggish pulling away in low gear . It shifts up fine , but cannot get out of it's own way in first gear. This is a turbochar...
1994 Pontiac Grand Am SE 2.3L Turn Signals VIN: 1G2NE5531R
Dear Gm techs. Hopefully you can help me on this one. Customer brought in this car. He was going to try and replace turn signal flasher because both turn signals quit working at once. We have the car in our shop, have tried a known good turn signal switch(have...
2000 Pontiac Sunfire SE 2.2L Misfire VIN: 1G2JB1240Y
this car has a miss on freeway when you crowd the throttle. It only happens when the outside temp is below 35 degrees. car has good spark plugs, wires and newer coils. like i said only happens on freewy at cruise. motor does not have egr valve. fuel pressure i...
1993 Saturn SL1 1.9L Mechanical VIN: 1G8ZH5593P
Dear fellow techs. I need to replace the automatic Trans on this Sl1 single cam saturn The Trans code is 3mp6. The interchange says there are 2 trans in 1993 for this model.I have a 1993 single cam auto trans with code 4mp6 I do not have vin Info from donor ca...
2005 Saturn Ion-2 2.2L Cuts out VIN: 1G8AJ52F95
We have an intermittent problem with the accelerator pedal position sensor. The code will set and then the message loss of power will be displayed. We performed a top engine clean and cleaned throttle body. We found a bulletin on the harness in the right kick ... Trouble codes: P2138 (accelerator pedal position sensor)

Fixes & Summaries for GM
Fix/Summary Answers
1995 Buick Roadmaster 5.7L Mechanical VIN: 1123568452
first of all i like to think evaryone you took the time to read this and repled to it. the car is out the door and it is fix. the problem needed up being the ect sensor. the engine was getten hoter then the scaner was reading so in return the fan was not comin...
1996 Chevrolet S10 2.2L Hesitation, Surge, Stall, Misfire VIN: 1GCCS1445T
Customer decided to let his younger brother take it in to the local school Auto mechanics class to get timing chain, head gasket, & converter replaced. If I find out if the vehicle is fixed I'll post again with the results. Thank you all for taking the time to...
2005 Chevrolet Cavalier LS Sport 2.2L Cluster VIN: 1G1JH12F95
One of the two top bell bolts has a stud on the back side with 2 or 3 grounds straps on it. I forgot to tighten down the nut, there but loose.
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