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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for August 23, 2013
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Open Help Requests for GM
Help Request Answers
1977 Chevrolet C10 Cheyenne 5.0L all gauges VIN: CCL447Z165
I am looking for a wiring diag for this truck so I can figure out the wiring going to gas gauges thanks in advance
1996 Chevrolet G30 Chevy Van 5.7L transmission VIN: 1GCGG35K5T
Thanks in advance to all who share their wisdom on this old beast. We have some trans problems that we weren't able to duplicate at first. The van seems to drive ok around town, maybe a little late shifting but nothing terribly out of the ordinary for this van...
1996 Chevrolet Corvette 5.7L abs VIN: 1G1YY22P1T
Greatings everone. I am here once again seeking wisdom. This Vette came in with a Service ASR and ASR OFF lights on. Found code 65 and ran diagnostic tree and it claimed the module was at fault. After much searching found used module was the onl;y thing availa...
2006 GMC Sierra 3500 SLT 6.6L MIL Lamp on VIN: 1GTJK33D56
Hello Duramax Gurus! This one code p003a turbocharger learn failed last ignition. P003a diag. chart say to test the vane position control solenoid circuit. Unplugged solenoid, test voltage to blue wire at solenoid wire key on 12V ok, test voltage to white wire... Trouble codes: P003A
2007 Saturn Ion-2 2.2L Poor Idle Quality, high idle VIN: 1G8AZ55F77
We cleaned the throttle body on this vehicle for maintence.The car will start and idle ok until you press the accelerator pedal.TPS goes to 17% and stays there.RPM is at about 2200.Tried the throttle relearn numerous times.Disconnected battery cables and conne... Trouble codes: P0507 (idle conrol system rpm too high symptom 00)

Fixes & Summaries for GM
Fix/Summary Answers
2001 Cadillac Catera 3.0L No Communication VIN: W06VR54R61
After unplugging all modules and trying to determine which one was pulling down the system, I rechecked the power going to DLC. The DLC had no power were i had first found good power and grounds to the DLC.I went to the fuse block under the dash and just by pu...
2001 Cadillac Eldorado ETC 4.6L Alternator VIN: 1G6ET12941
Thank you everyone that replied. I am not one hundred percent sure this car is fixed. The last I heard the car is being driven every day. volts drop down to around 12.8 I say it not right other say PCM controls the voltage output. Thanks again everyone
1991 Chevrolet K1500 Cheyenne 5.7L 1-2 shift VIN: 1GCDK14K2M
Hey guys thanks for all the input, the fix was band adjustment. I had installed the spacer shim that came in the shift kit, I think it made the band a little to tight. took out the spacer and all is good. Again thanks for all the input
1993 Chevrolet P30 5.7L engine assy VIN: 1GCHP32KXP
This body has Chevrolet and Step Van emblems on it. I cannot find any body identifiers. Anyway, I figured pulling the motor out the rh door is the correct way. Some of the floor panels are removable as well as a upper panel under the dash. I'm pretty sure I'll...
2006 Chevrolet Silverado 1500 HD LT 6.0L Transmission? VIN: 1GCGK13U86
It was a toss-up between trans & transfer case... The tans pan was clean, the transfer case fluid clean also. The transfer case would never go into 4L, ever. So we replaced the transfer case. with a rebuilt and the customer was okay with that.
2003 GMC Yukon SLE 5.3L Cuts out, MIL Lamp on, Limp Mode VIN: 1GKEK13T23
Well afterall the usefull info, I found the ground wire at the rear of right side of the engine to be bad,repaired the ground and truck has been driving fine since. Thanks for all the help! Trouble codes: P1518.
2008 GMC Acadia SLT 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GKER33708
Thank you Micheal and Steve. I ran a full can of Sea Foam upper intake and decarbonizer instead of the GM part. I ran the whole can even though the instructions said to use only half. After letting it set for 15 minutes I drove it aggresively. I came back to ... Trouble codes: P0300 (Engine misfire detected).
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