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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 8, 2019
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
1995 Buick Regal Limited 3.8L MIL Lamp on VIN: 2G4WD52LXS
Code p1640 ( qdm 1 failure. Test evap purge valve and it ok. Test power and ground for tcc enable solenoid and it ok. Has anyone have this problem before Trouble codes: P1640 (Qdm 1 failure)
2012 Chevrolet Express 2500 4.8L MIL Lamp on, limp mode VIN: 1GCWGFFA1C
Vehicle towed in two Mondays ago. Customer complained of check engine,traction control,airbag, and abs lights illuminating service traction control,service air bag messages in information center all gages on instrument cluster showing zero and loss of tran... Trouble codes: P7000, U0730, U1000, U0140 (Transmission lost communication with bcm), U1007, U1017

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet Silverado 2500 HD 6.6L Transfer Case VIN: 1GCHK23193
Thank you to all that have applied. You confirmed what I was thinking. I was able to contact the referring shop and talked to the original tech. I was miss informed and it was the tccm that was replaced. Originally they had a no communication so they repla...
2005 Chevrolet Equinox LT 3.4L Misfire, Misfire on decel VIN: 2CNDL73F75
Thanks guys for all the input. After doing more diagnosing found that coolant was infact entering the cylinders. Replaced Head gaskets and all is fine.
2008 GMC Sierra 3500 HD WT 6.6L Power Steering VIN: 1GTHK336X8
Ok, the customer took his truck while waiting for us to get the Kent Moore kit. Kit came in but customer said he's happy with the way it is working and doesn't want to bring it back in right now, we will perform the test when we see his truck back for service ...
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