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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for September 17, 2020
International Automotive Technicians' Network (iATN) - Members Only
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Open Help Requests for GM
Help Request Answers
2012 Chevrolet Impala LS 3.6L Fuel injectors VIN: 2G1WF5E32C
Morning and thanks for taking the time to read this... I have 2012 Chevy Impala with the 3.6 liter that came in and has a bad #2 injector. I check as the TSB says for proper wiring harness routing and also for any chaffing of the harness! I have never inst...
1995 GMC K2500 Sierra SL 5.7L Poor Idle Quality, Stall VIN: 2GTFK29K1S
This truck came in as a tow in crank no start. It had no spark but did have injector pulse. I had no coil control out of the ignition module. Replaced the distributor assembly/ignition module. Truck stared up and ran fine, set the timing and then now it in...
2014 GMC Terrain SLT 2.4L Excessive Emissions, MIL Lamp on VIN: 2GKFLXEK7E
Hi all, back story car towed in snapped timing chain, customer opted install used engine. Just installed a used 2.4l in this GMC terrain. The salvage yard engine came out of a 2011 buick regal 2.4L but the salvage yard insists it is interchangeable. I am... Trouble codes: P0172 (Bank 1 Rich)

Fixes & Summaries for GM
Fix/Summary Answers
2003 Cadillac CTS 3.2L Starting VIN: 1G6DM57N43
Thanks to Michael! When checking it we did find a voltage drop on the ground side of the ECM feed to the relay, replaced and programmed ECM with new unit from GM, problem fixed. Thanks again
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