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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for January 5, 2011
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Open Help Requests for GM
Help Request Answers
1966 Buick Skylark 4.9L Stall VIN: 1BH2A3AA4A
Hello Iatn, I have one that should be easy, for some reason this one is not. I have here a 66' skylark dont really know if its a 300 or a 340. The customer drove the vehicle and it simply stalled on them. It was towed to the shop where it would not restart eit...
1989 Buick Electra Park Avenue 3.8L Dash VIN: 1G4CW54C3K
Vehicle has electronic dash, Dash comes on and flickers and goes off almost immediatly after car has been started. I have not tore the dash apart yet to investigate as it looks, to be a very dis-comforting chore. Has anybody got any info on this before i go in...
2002 Buick Rendezvous CX 3.4L Traction Control VIN: 3G5DA03E22
The traction control off lite stays on unless in reverse, the ABS works we have 2 codes c0240 and B2552. We tried a different BCM no change. Also the prndl lite doesn't work in any position, we have not looked into that. We don't know if this was working befor...
2005 Buick Terraza CXL 3.5L Passg. temp.blend door VIN: 5GADV33L95
Passenger side temperature blend door is broken where the gear plugs in. I bought replacement doors, and gears,(as GM sells it). My concern is the actuator gear "stops" that are molded into the upper evaporator case are both broken off. The actuator has only 2...
1990 Cadillac DeVille 4.5L Blower motor VIN: 1G6CD5332L
Car originally came in with no blower operation. NO Codes in BCM. Followed GM's "no blower operation" flowchart and see no voltage from BCM to blower power module (blower resistor)on pin B of 4-wire connector. Continuity in wiring was good so it says replace B...
2002 Cadillac DeVille 4.6L MIL Lamp on VIN: 1G6KD54Y92
Thanks in advance for any help. Car came in about 3 weeks ago with P1359 in it. Cust complained that CEL light was on and seemed to run a little rough. At that time we did see missfires on bank one so we replaced that module and sent it down the road thinking ... Trouble codes: P1359
1998 Chevrolet S10 2.2L No Start VIN: 1GCCS194OW
hi to all i have this 98 s10 from anouther shop intermitly no start no spark they have replaced crank sesor modual computer coils just looking for some input before i get started thanks in advance jeff
2000 Chevrolet Blazer LS 4.3L Right Front VIN: 1GNCS18W2Y
Ongoing problem with this S10 2wd Blazer.Clunking/thumping noise from RF area.First shop replaced sway bar links and bushings,my junior techs then diagnosed and replaced all the other parts one at time thats when it landed in my lap.(New Years gift?) I've hook...
2006 Chevrolet Silverado 1500 LS 4.3L driveling, transmission VIN: 1GCEC19X56
hey guys, this vehicle comes into the shop yesterday and the customer just bought it and is complaining about a vibration about 44 mph, and under a light accelleration. I went to drive it to see if i can duplicate it, and there it was. It was if i needed to do...
2007 Chevrolet Cobalt SS 2.0L MIL Lamp on VIN: 1G1AP18P07
This cobalt came in with this rich code (p0172) weeks ago and we found a tsb about its high fuel trim. Since then we have done two fuel injection cleanings and pretty much ruled out any injector sticking problems. The light has since returned and we can't seem... Trouble codes: P0172
2007 Chevrolet Monte Carlo LT 3.5L Radio, Blower VIN: 2G1WJ15K17
When driving this vehicle the radio volume will shut off. The ligts stay on the radio and you can turn the volume up and change radio stations but there is no music at all. As soon as you stop the car and turn the key off and back on the radio will work again ...
2011 Chevrolet Silverado hd 6.6L diesel exhaust fluid VIN: 1GC1KXC85B
Good afternoon Gm truck techs everywhere.This is my own personal truck.It is new with only 2800 kms or approx 1800 miles on it.This thing DRINKS diesel exhaust fluid!!!.It was supposedly full when I picked it up,I added 5 gallons at 1600 kms or 1000 miles and ...
2001 GMC W3500 Forward W3S042 5.7L Hesitation, Misfire VIN: 4KDB4B1R51
Truck starts ok cold starts to run worse the hotter it gets. Checked for vacume leaks found none. fuel pump 52 psi idle. It appears to be running lean on bank 2 any body seen this before? Thanks for any help. Trouble codes: P0468
2002 GMC Envoy SLT 4.2L air suspension VIN: 1GKDT13S32
vehicle came in with rear suspension dropping-sprayed air bags with soapy water-found air bags leaking-replaced air bags-system will pump up-but will leakdown on left side-replaced air lines on left side still same problem-unable to find any more external leak...
1987 Oldsmobile Delta 88 Royale Brougham 3.8L Cuts out, Stall VIN: 1G3HN5433H
Vehicle arrived at our garage after multiple items have been changed. The vehicle has no codes but is in limp home mode. When cold the vehicle will start and run (it runs like normal) after a minute it will sputter and eventually stall. After it stalls it will...
2000 Pontiac Montana 3.4L Cooling Systems VIN: 1GMDUOEEYD
van not over heating temp steady. seems to be putting coolent into over flow and not going back into rad .suspect bad head gasket what does the coolent bypass moter? thanks

Fixes & Summaries for GM
Fix/Summary Answers
2004 Buick Regal LS 3.8L shift interlock VIN: 2G4WB52K54
thanks to all that responded. this is still somewhat of a mystery. after driving the car and communicating with no codes for two days i removed and check the ignition switch. it tested fine and no burn marks. i replaced the switch for added insurance. it's bee...
2006 Cadillac SRX 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GYEE637X6
Sorry for my delay on this. Believe or not, previous tech made a perfect white dot right next to the window that you look to check if the painted chain link is in position on the left bank. Unfortunately my mistake was to follow that white dot and used a mirro... Trouble codes: P0009 (Engine Position System Performance Bank 2), P0018 (Crankshaft Position CKP/Intake Camshaft Position CMP Correlation Bank 2), P0019 (Crankshaft Position CKP/Exhaust Camshaft Position CMP Correlation Bank 2), P0302 (Cylinder 2 Misfire Detected), P0304 (Cylinder 4 Misfire Detected), P0306 (Cylinder 6 Misfire Detected).
1999 Chevrolet Malibu 3.1L Engine VIN: 1G1NE52J8Y
Thanks to all for help and advice, we replaced the Ign lock cyl. and it changed the problem but not a total fix until we changed the switch also..So far driving without a problem,, Thanks again...
2005 Other GM business cla .0L adjusters
To all who replied Thank you for all your help. I would not have fixed this vehicle without eleminating the tips you provided. The brakes were locking up due to bent s cam housings. Both s cam bousings were bent left pretty bad and right ever so slightly. th...
1987 Pontiac Firebird Trans Am 5.7L Glass VIN: 1G2FW2189H
Thanks for the suggestions,guys. I did end up getting it working by removing the latch assy and disconnecting the motor - i toggled the switch on the motor a few times and it began to work. I repaired poor connections at the four wire harness connector. Now it...
1995 Pontiac Trans Sport 3.1L Traction control VIN: 1GMDU06L8S
Hope you guys had a good Christmas and new year. Customer has not returned for us to take this any further, so until they do, there's not much we can do for them. However, thanks for your ideas, much appreciated.
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