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Professional Automotive Repair Technical Discussions for March 21, 2023 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 | |
| 1997 Chevrolet K2500 Suburban LT 7.4L Poor Idle Quality, runs rough low power VIN: 1GNGK26J4V Customer states vehicle was running great then in a second ran like crap,Had code for maf sensor low voltage a,maf was reading wierd so we replaced that and that cleared the code.Car still runs rough almost like a misfire but no misfires show up in engine ... |
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| 2021 Chevrolet Express 4.3L Headlights Got this '21 Chevy Express hi beam headlights inoperative. Hi beam relay location is listed in Mitchell as circuit board relay but no location is given for it. Gotta believe it is integral to the fuse box. Need to locate relay for proper diagnosis of the p... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2009 Chevrolet Colorado WT 3.7L Poor Idle Quality, Stall, Misfire VIN: 1GCDT19E49 Turns out that there was too much ethanol in the fuel. It was about 50% ethanol. I drained the tank and flushed out the lines. Now the truck runs great. Trouble codes: P0300. |
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| 2012 Chevrolet Express 1500 4.3L Electronic VIN: 1GCSGAFXXC The customers said the transmission was replaced at a Chevrolet dealership about 4 years ago. He said that it could be the same issue before but not sure. He bought back to the dealership and found out bad wire harness between the fuse box and the transmission... |
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