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Professional Automotive Repair Technical Discussions for February 26, 2024 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 | |
| 2007 Chevrolet Tahoe LTZ 5.3L Electronic VIN: 1GNFK13087 Customer has traction lights on the dash. Scan vehicle, no communication with TCM. Check power, grounds, comm lines, wake up signal to TCM all correct. Replace TCM with AC Delco reman, very low warranty rate. TCM communicating correctly, cannot clear the f... |
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| 2014 Chevrolet Trax LS 1.4L Cam timing VIN: 3GNCJPEB8E I have not worked on one of these before, its a shop vehicle so I got sucked in. Doing a head gasket. When I unloaded the tensioner I felt/heard something slip on the exhaust side and suspected it jumped a tooth or two, but wasn't looking. 2014 Ecotec ... |
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| 2008 GMC Yukon XL 1500 Denali 6.2L No Start, No Start VIN: 1GKFK66888 3 engine replaced old engine, ran 1500 miles then oil PSI, dropped , put rebuild engine in , cranks, pops in the air box, cranks but no start, no codes fuel PSI Good , can see crank and cam signal , |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2013 Cadillac CTS 3.0L Ipc VIN: 1G6DE5E58D First I removed the cluster and traced the circuits pin #19 red/white wire back to the under hood fuse box C2 pin #57. Connector pin #57 was dislodged. Found that it was in the harness to tightly. Repositioned it and taped it in a better position and put the h... |
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| 2020 GMC Sierra 2500 HD AT4 6.6L Trailer Brake VIN: 1GT49PEY6L Thank you thank you. Both of you had it right Kevin, pin 14 at Chassis module was my problem. Had the green funk on the pin terminal back side voltage was testing at 5v. I went to glow plug engine connector checked the circuit and found system voltage. It wa... |
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