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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for November 2, 2021
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Open Help Requests for GM
Help Request Answers
2007 Chevrolet Silverado 1500 Classic WT 4.3L Poor Idle Quality, Hesitation, Cuts out, high trims VIN: 1GCEC14X27
Got a tough one. Lean codes for both banks. Rough idle intermittently, extended crank, intermittently and intermittently engine bogs down and no throttle response, briefly. Noted trims max out high under load, but trims normal at idle or cruise. Every time... Trouble codes: P0171, P0174
2010 Chevrolet Silverado 1500 LT 5.3L Lifters VIN: 1GCSKSE34A
We are working on this Active Fuel Management Chevrolet. It has the collapsed lifter on one of the cancelling cylinders. The customer would like to delete the system and just put the normal roller lifters in. Comp Cams makes a kit but does not state if a...

Fixes & Summaries for GM
Fix/Summary Answers
2003 Chevrolet S10 4.3L High idle VIN: 1GCCS19X13
long story short it turned out to be a tps that took a couple of weeks to show up under a trouble code, during those days that I was trying to narrow down the problem the graphing on the verus was showing no problems with the tps Trouble codes: P0300 (Random misfire).
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