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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for March 16, 2014
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Open Help Requests for GM
Help Request Answers
2006 Chevrolet Silverado 2500 HD WT 6.0L long start VIN: 1GCHC29U56
Thanks in advance for anyone who takes the time to read and/or offer any assisstance on this problem. Truck came in from another shop with a long start on hot soak. It has never acted up on a cold start with me or the customer. We have experienced a normal cra... Trouble codes: P0622, P1637
2001 Pontiac Bonneville SSEi 3.8L epc pressure VIN: 1G2HZ54101
This 4t65e is causing me to pull my hair out! There are no codes, Trans shifts hard in all gears unless manually shifted, replaced pcm which fixed it for a few miles then back to the same problem. Unhooked batt for a couple hrs and the epc amperage was normal ...

Fixes & Summaries for GM
Fix/Summary Answers
2003 GMC Envoy SLT 4.2L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GKDT13SX3
#1 misfire checked for fuel pressure was bleeding off so replaced fuel pressure regulator ran multiple types of injector cleaners but could still hear loud clicking from #1 injector so replaced injector ,tough job on these type engines, cleared up misfire als... Trouble codes: P0301.
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