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Prev Professional Automotive Repair Technical Discussions for December 4, 2012
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2003 Cadillac DeVille DHS 4.6L Heater controls VIN: 1G6KD54Y63
This is to Juan in CA who specializes in Cadillac (or anyone with knowledge of this problem). I have an '03 De Ville that I need help aligning cam gears for the defrost/vent/heat door. This is the first one I've tried where replacing the actuator motor is requ...
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2006 Cadillac Escalade EXT 6.0L stability cintrol VIN: 3GYEK62N06
Customer says while driving, stability system becomes disabled. This will happen at different intervals and driving situations. I have checked for codes while the stability control system is disabled and found no codes in any of the modules. I have looked at d...
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2007 Cadillac Escalade ESV 6.2L Heated and Cooled Seat VIN: 1GYFK66807
Vehicle came in with drivers seat heat and cooling inoperative. Passenger seat operates just fine. Found connector C1 on CCSM with the usual melted connector and terminals. Replaced connector and terminals, as well as module that was burnt and melted, did not ...
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1988 Chevrolet S10 Blazer Sport 4.3L Right Rear Brake VIN: 1GNCS18Z6J
I can't believe i'm asking for help on what should be a very simple system but i'm baffled by this one. Cust came in with this 2WD Non ABS S10 Blazer wanted us to replace leaking axle seal and shoes(left side),we found it needed wheel cylinders and drums were ...
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1997 Chevrolet K2500 Cheyenne 7.4L No Start, Poor Idle Quality, Stall VIN: 1GCGK29JXV
This truck has an intermittant no start and intermittant stall on decel. It will usually restart. Sometimes when trying to restart you have to hold the gas pedal down and when it starts it will return to a good idle after you release the fuel pedal.. It has po...
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1998 Chevrolet K3500 Cheyenne 6.5L Surge VIN: 1GCHK33F3W
I am not a diesel guy so any help would be appricated. I have this 3500 and when you press the gas pedal the truck goes to wide open and stays there, the app sensor voltage drops when I let off the gas but the RPMS stay wide open. Not really sure where to look...
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2003 Chevrolet Malibu LS 3.1L Front brakes VIN: 1G1NE52J03
Hello all, Thank you all in advance for your help. and this is the first time for this if i forgot something let me know. Not sure where else to go on this one the cust. never has much time when they are here so i have to use the time i have wisely. The next ...
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2004 Chevrolet Monte Carlo LS 3.4L Speedometer VIN: 2G1WW12E64
2004 monte, erratic speedometer readings shows 110 mph when doing 50, or shows 25 mph when doing 50 shutting off and on the ignition switch about 10 times did correct it but after a few days back to the erratic again
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2007 Chevrolet Equinox LT 3.4L reduced engine power VIN: 2CNDL73F97
This problem is occurring intermittently. Upon initial investigation I found that the rug and matting on the driver's side was soaking wet. I don't know if this is causing residual effects on the harness connectors that are down low. But I did dry the interior... Trouble codes: P0121 (TP Sensor/APP Sensor), P2119 (Throttle Closed Position/performance), P2135 (TP Sensor 1-2 Correlation)
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2002 GMC Yukon SLE 5.3L Stall VIN: 1GKEK13Z32
Came in with leaking intake gaskets, Gasket were replaced started fine. After sitting for 30 minutes would start and die. No vacuum leaks no codes fuel pressues ok iac working fine. Any ideas as to what I am missing?
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2004 GMC Sierra 1500 SLT 5.3L nocommunication VIN: 2GETK19T44
Thank to all in advance this 1500 has no communication with any modules it will start and run no acc Windows doorlocks radio cluster etc while checking bcm everything started to work but then quit not to sure where to go unplugged all easy modules checked no v...
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2007 Pontiac G6 3.5L brake lights VIN: 1G2ZG58NX7
Got 2 strange critters on the same day that I have a feeling a few of you GoodWrech guys have been there. Got an '07 and '08 G6 that are setting code C0277 BPP sensor signal short to ground. They called me in to calibrate the BPP position sensor with my Tech 2...
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1996 Saturn SC2 1.9L Hesitation VIN: 1G8ZG1273T
hey iatn members i got this 96 saturn coup the car runs great when its cold, as if there are no problems. I have noticed as the car warms up it continues to run fine until the temp reaches about 140 degrees or half way between cold and normal operation of the ...
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1999 Saturn SL2 1.9L secondary air system VIN: 1G8ZK5279X
Hey everyone, got another good one for you. This Saturn sets a P0410 pretty regularly, only when driving. Freeze frame indicates the car was moving at 8 MPH, coolant 138 F and RPM 1410. Clear codes and drive for about 5 miles and code comes back. Code never se...
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Fixes & Summaries for GM
Fix/Summary Answers
2000 Buick Park Avenue 3.8L No Start, Stall VIN: 1G4CW54K0Y
thanks for all the help guys after reading your posts i started checking all sens signals with my modis i found when looking at the map signal it was way off koeo was at .78 volts sld have been around five volts , installed new sens. and went to 4.78 volts tes... Trouble codes: P0101.
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2005 Cadillac STS 3.6L No Start VIN: 1G6DW67785
Iforgot to close this request for help, it turned out to be the theft system needed to be reset, on the third attemp (of 30 min each) it started.This is the only Gm car I've ran into that would turn off all the modules untill the relearn was successfully compl...
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1998 Chevrolet Venture 3.4L maf VIN: 1GNDX03E1W
I`M A LOT THAN EVER TO FIGURIN LOW IDLE.GOT GREAT INFORMATION ON VOLTAGE VALUES SO I WILL CONCENTRATE ON MY AIR FLO METER VOLTAGE.CLOSIN THIS W/THAT MUCH NOHOW IS GREAT CAUSE NOW I FEEL CLOSER TO PROBLEM.THANKS TO EVERYONE FOR THE INFORMATION N WILL PASS THIS...
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1999 Chevrolet Tracker 2.0L Unknown VIN: 2CNBE18C4X
i should stick with my first thought. i put that it has 65000 miles on it, it has only 30000 miles. and it jump timing. hard to beleive no engine noisen runs like a champ. exhaust cam off two teeth. replacing everything . thanks
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2003 Chevrolet Silverado 2500 HD 6.0L Misfire, MIL Lamp on VIN: 1GCHK24U03
Thank you to everyone that chipped in on this problem. I apologize that I didn't have specifics on the many of the sensor readings. It's been difficult with the length of time since I started chasing the problem I didn't record data as tightly as I should have... Trouble codes: P0300 (Random cylinder misfire).
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2004 Chevrolet Tahoe LS 5.3L engine VIN: 1GNEC13Z54
YOU ALL WERE RIGHT ON THE MONEY. 2 OTHER SHOPS HAD SUPPOSEDLY CHECKED PLUGS. APPARENTLY, NEITHER SHOP ACTUALLY DID. WE FOUND 2 PLUGS LOOSE ON EACH BANK.I'M SURPRISED THAT IT MADE NO NOISES INDICATING THIS. FIXED AND SHIPPED, NEW CUSTOMER PLEASED. THANKS!
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2004 Chevrolet Tahoe LS 5.3L Steering coulmn VIN: 1GNEK13Z84
Well this seems to be a very common problem, overwhelming responses for replacing the intermediate steering shaft. Replaced the shaft and the noise is gone, thanks to all who took their valuable time to lend a hand.
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2006 Chevrolet Impala LS 3.5L Misfire VIN: 2G1WB58K66
well, the owners needed the car, and took it to the dealer. they say it's fixed, with water in the fuel being the issue. How water in the fuel affects only one cylinder, I do not know. We pulled the injectors, swapped the problem cylinder, and checked the fuel... Trouble codes: P0300.
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2006 Chevrolet HHR LT 2.2L steering light VIN: 3GNDA23D16
I will call this one fixed. I went trough and checked all the terminals for the fretting bulliten. All checked good. Put dialectric grease on all connectors and after a month no problems. Thank you all who replied, I know time is valuable. Merry Christmas. Trouble codes: U2107 (Lost communication with BCM), U2103 (Fewer controllers on than programmed).
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2007 Chevrolet Avalanche LTZ 5.3L Poor Idle Quality VIN: 3GNEC12087
Cleaning the throttle body while the intake manifold was on the bench with the battery disconnected seems to have been the root cause of the problem. An idle relearn is exactly the fix. However,we did not have access to A Tech 2 nor did the idle relearn funct... Trouble codes: P0507.
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2007 Chevrolet Impala LS 3.5L tcc VIN: 2G1WB58KX7
Thank you for the advise. After looking at the data decided was leaking pressure internally. Had it flashed anyway for good measure, was current flash. Pulled trans, replaced converter seal, replaced valve body plate and gaskets, tcc solinoid and tcc pwm solin...
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1998 GMC K2500 Sierra SL 6.5L Misfire, runaway VIN: 1GTGK29FXW
Arne from Utah had the answer. The PMD was bad again, runs like a champ on the new one. When I took the old one (20 month old Accurate Diesel unit remote mounted on a heat sink) off it smelled like burnt plastic. I'm not sure if the close time hovering betwee... Trouble codes: P0219 (Engine overspeed).
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