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Prev Professional Automotive Repair Technical Discussions for June 2, 2011
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Open Help Requests for GM
Help Request Answers
1998 Chevrolet K2500 Silverado 5.7L fuel tank collapses VIN: 1GCGK29R2W
have replaced the fuel tank twice in the past year;it keeps collapsing. has anyone seen this before
1999 Chevrolet Silverado 1500 5.3L No Start VIN: 2GCEK19T6X
Hi guys, this truck came on the flatbed to my shop. Customer said truck died going about 65 mph. First thing checked was fuel pump. Did not hear fuel pump run so started checking fuses underhood. I found blown ecm-1 fuse. Went to replace it turned ign switch o...
2000 Chevrolet Monte Carlo LS 3.4L Passlock VIN: 2G1WW12E0Y
We have a 2000 Chevrolet Monte Carlo that came in with a lock cylinder that was siezed up. We replaced the lock cylinder and ignition switch and the vehicle will not start. We have power coming out of the switch to the pcm but no command coming out of the pcm....
2001 Chevrolet Cavalier 2.2L Serpentine belt VIN: 1G1JC12451
Belt tensioner was replaced on 5/21/11. Serpentine belt came off again today (6/2/11). There are no obvious signs of wear from any of the pulleys (water pump bearing, etc). The pulleys seem to line up okay. The only suspicion I have is that the water pump pull...
2003 Chevrolet Silverado 1500 5.3L MIL Lamp on VIN: 1GTEK19T73
Drives normally once MIL cleared,will not fail.Once shut off and restarted cold fault occurs.P1125 pedel sensor circuit this is a wireless throttle actuating system.Once this fault is set vehicle is in reduced power mode. Any help would be great, thanks Dave. Trouble codes: P1125
2004 Chevrolet Tahoe LS 4.8L Compressor VIN: 1GNEK13V54
Gm guys help please i have no comunication with the hvac module.it is a manual hvac with rear hvac.all positions change blend doors operate compressor will not engage.i can go through scanner and turn a/c comp relay on and it blows cold.my scan tool is snap on...
2005 Chevrolet Colorado Sport LS 2.8L ignition relearn VIN: 1GCCS19885
customer broke truck in for no start condition. he initially brought the truck from a used truck/car lot. he developed this problem and dealer troubleshoot it and did a relearn. after the relearn, problem has been intermitant. customer brought to us to have th...
2006 Chevrolet Trailblazer LT 5.3L Hesitation, Misfire, MIL Lamp on VIN: 1GNET16MX6
Thanks ahead of time for looking: We preformed a compression check, leak down check, all ok. Did run in compression test on the #1 bank. Cylinder #1 was low and 3, 5 and 7 were fine. Removed cylinder heads and valves. #1 exhaust valve excessive wear. Regrounde... Trouble codes: P0301
2001 GMC Savana 3500 SLT 5.7L No Start VIN: 1GDJG31R01
OK guys I was called in to program a pcm for this van. The shop said the old pcm was junk. The van was towed in for died whil driving issue. I went to program the remanned pcm and it errored out. When I called gm techline with the error codes for the programmi...
1990 Oldsmobile Delta 88 Royale Brougham 3.8L compressor VIN: 1G3HY14CXL
Usually dont get involved in ac work... but its a relative... thanks in advance for any and all help... the ac compressor is running/ as is the cooling fan when ac is on... my pressures are 90+ psi on Low Side and Under 80psi on High side. receiver dryer is no...
1990 Oldsmobile Toronado Trofeo 3.8L Excessive Emissions, Poor Idle Quality, Stall, MIL Lamp on VIN: 1G3EV13C4L
Came in stalling, blowing black smoke and code 43 ESC stored. Code will reset immediately on startup if cleared. Sometimes will suddenly stall like turning key off, will happen even with vacuum leak to bring mixtures down. Block learn and integrator at 100 PW ... Trouble codes: 43 (Esc)
1999 Oldsmobile 88 Royale LS 3.8L Unknown VIN: 1G3HN52KXX
Olds transmission
2001 Oldsmobile Aurora 3.5L Ebcm VIN: 1G3GR62H41
I have a 2001 Olds Aurora with an ABS light and a red brake light on and no communication with the EBCM. PCM is not recognizing it either. Verified power to pins A & B and grounds to pins F & G. Verified serial data circuit. With EBCM disconnected I have conti...
1999 Pontiac Sunfire SE 2.2L overheats VIN: 1G2JB124XX
Hi everyone, As you can see this little pontiac is kicking my butt. It takes a little driving and the temp starts to climb to the red zone I have confirmed it is deffinately overheating. We have replaced the radiator flushed the cooling system twice replaced t...
2006 Pontiac GTO 6.0L Ignition key cylinder VIN: 6G2VX12U26
Ocassionally the key cylinder acts up and will not turn. If you wiggle the key while it is in the cylinder it frees up. This could take a few minutes.or not! there is no way of knowing when it will happen.I am not sure what can be done. or if it can be done wi...
2003 Saturn Vue 3.0L MIL Lamp on VIN: 5GZCZ63B53
Hello need your help on this one. Of course I reviewed all the other support simular problems and same Fault codes. P0638, P1780, P0700, P2100, P2101, P2119,& P2176. Yall are great help, check all the right stuff, but no fix. This vehicle goes to the REDUCE... Trouble codes: 0638 (throttle actuator control MIL), 0700 (transmission control system/MIL), 1780 (transmission control moduel TFP MIL), 2100 (throttle actuator control TAC motor-open circuit), 2101 (throttle actuator control TAC motor range/performance problem)

Fixes & Summaries for GM
Fix/Summary Answers
1973 Chevrolet Corvette 5.7L Alignment
Sorry for the delay finnally decided on 225/70r15 thank you all for the response.
1999 Chevrolet Tahoe 5.7L 4l60E VIN: 1GNEK13R9X
Thanks to everyone that responded. I tore the unit apart and found the 3-4 clutches burnt. The steels were blue. After further tear down I found the scarf cut seal for the 2nd apply piston laying in the accumulator bore. Replaced the seal and all the pistons a...
2003 Chevrolet Silverado 2500 HD 6.0L MIL Lamp on VIN: 1GCGK13U73
This truck has had pretty much everything replaced on the throttle actuator control system but the accerator pedal.We are not convinced that the throttle pedal is the problem for the P2135 code. After checking all of the system wiring we decided to redo the de... Trouble codes: P2135.
2004 Chevrolet Venture LS 3.4L Unknown VIN: 1GNDX03E94
I want to thank everyone for the responses. I had to reattach the sheild in front of the tank as the rivets had loosened up just enough to allow it to rattle under the van. Thanks again everyone! Korey
2006 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Hesitation, MIL Lamp on VIN: 1GNDT13SO6
Thanks to all who replied,we ended up finding a broken power wire in the TB harness about a foot away from the TB that feeds power to both the throttle body and the mass air flow sensor. Trouble codes: P1516, 91682 (ignition 1 switch circuit 2).
2006 Chevrolet C4500 Kodiak C4E042 6.6L MIL Lamp on VIN: 1GBG4G1226
I have replaced the harness as Kim and Nick suggested. Waiting to see if the code comes back. Thanks for your help. Trouble codes: P0101.
2002 GMC Sierra 2500 HD 6.6L Misfire, MIL Lamp on VIN: 1GTHK23101
Thanks for the help this is fixed. We replaced #8 injector and sent customer on his way has had no return faults as of yet. Before replaceing the injector we ohmed all left side circuits to ficm all no faults. We had read your responces and talked with our cus... Trouble codes: P0308 (Missfire number 8 cylinder), P1244 (Injector 8 output circuit).
2006 Other GM h3 3.5L Misfire, MIL Lamp on VIN: 5GTDN13626
1998 Pontiac Sunfire SE 2.2L No Start, Stall VIN: 1G2JB5243W
Sorry for the long time to get back to all of you that have helped me. Replaced pcm and that fixed vehicle, thanks again to all of you that helped me. Trouble codes: P1629 (Theft Deterrent System Fuel Enable Circuit Incorrect Signal Detected During Crank.), U1016 (U1016 - Loss of Class 2 Communication with VCM.).
2002 Pontiac Grand Prix GT 3.8L no 4th VIN: 2G1WL52M02
Sorry for the late reply...all of you that said it was transmission were right on...thanks guy I really appreciate the help..:D
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