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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 24, 2014
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Open Help Requests for GM
Help Request Answers
2001 Chevrolet Astro 4.3L CTS IAT sensor VIN: 1GCDM19W01
Coolant temperature sensor and intake air temp sensor are displaying -40c. Vehicle is staying in open loop and running rough. I get 5Volts reference at both sensors. When I grounded the signal wire to ECM scanner data stayed at -40c. Full tune up has been perf...
1998 GMC Safari SL 4.3L Hesitation, Misfire VIN: 1GTCM19W0W
Hey guys see if you can help me on this one. Car came to me from my buddy's shop I got the van here and have misfire s counting down on Cly 2 fuel trims at idle st 6 lt 2 idles good till you put it into gear and just start to roll then it starts misfiring on 2... Trouble codes: 300 (Cly 2 14545), 300 (Cly 2 14545)

Fixes & Summaries for GM
Fix/Summary Answers
2006 Chevrolet Equinox LT 3.4L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 2CND173F36
I believe the lean issue on this was just the leaking pcv line that was replaced. I'm kind of embarrased to admit it, but the misfire was probably just due to not having the spark plug boot on all the way. I thought I had it in, but i twisted and pushed some... Trouble codes: P0171, P0300 (Multiple cylinder misfire).
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