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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for July 13, 2020
International Automotive Technicians' Network (iATN) - Members Only
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(Also Available: All, Asian, Chrysler, European, Ford, GM.)
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Open Help Requests for GM
Help Request Answers
2010 Chevrolet Silverado 2500 HD LTZ 6.6L communicatio VIN: 1GC4KYB64A
We have got the vehicle to intermittently communicate. We have tried a new tcm with no communication and cannot program. we have power at both ign feeds power at both battery feeds. grounds. and comm line test good for resistance. and we can communicate wi...
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Fixes & Summaries for GM
Fix/Summary Answers
2012 Buick Regal Turbo 2.0L No TCM Data VIN: 2G4GS5EV8C
Thanks for all the information and suggestions. I did pull the cover back off and disconnected both speed sensors plus the shift position sensor. This did not help with the lack of data. This did however provide codes so the module is responding. This is a cu...
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2010 Chevrolet Silverado 1500 WT 4.8L MIL Lamp on VIN: 3GCRCPEA6A
Thanks for the help folks. Glen pretty much nailed it. I flushed the system even though it didn't look that bad. Put in full synthetic oil. I could watch the pids and the longer I drive it the quicker the response time. I probably put about 30 miles on it 4 te... Trouble codes: P0011 (Variable cam timing error).
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2002 GMC Yukon SLE 5.3L Misfire VIN: 1GKEK13Z62
Thanks to all that replied. Replies included check fuel trims for poss pump problems. Long term was +8 and short term was -3. Also check fuel pump volume. I noted that was good on my original request and didn't bleed down for an extended time. I also had alrea... Trouble codes: P0300 (Random miss), P0171, P0174 (Lean bank 2), P0329 (Knock sensor), P0102 (Maf).
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