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Professional Automotive Repair Technical Discussions for October 12, 2017 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2001 Chevrolet Silverado 1500 4.3L Electronic VIN: 1GCEC14W91 After repairs truck was driven twice to get ready for OBD test, third drive the ABS light came on then red brake half second later, they blink on once a second only if the truck is moving, stop and the lights stop. Parking brake is off, when on red blinks fast... |
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| 2007 Chevrolet Silverado 2500 HD Classic WT 6.0L Torque Converter VIN: 1GCHK29U47 We rebuilt this 4l80e trans and now the converter locks up partially but not fully we think but the pcm never shows that it enables lock up on the scanner replaced the converter twice same result all electrical components are new as well as the wiring harness ... |
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| 2000 GMC Sierra 1500 SL 5.3L front differential/ tcase VIN: 1GTEK19T8Y alright guys this is my actual personal vehicle. as you know mechanics vehicles are the worst. 2000 gmc sierra z71, acts like it is stuck in 4wd all the time(hard to turn, squeals around slow turns, binds up, etc.) So i have changed front diff, rear diff, and ... |
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| 2009 GMC Yukon SLT 5.3L engine VIN: 1GKFK33089 Vehicle came in with a bad transmission, customer declined repairs and surrendered it. We decided to fix it, so I started tacking the problems with it. Today I removed the oil pan to repair a few leaks and found 2 semi circular pieces of metal laying in the bo... |
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| 1990 Pontiac Firebird 3.1L security VIN: 1G2FS23T1L i have this POS firebird that came in totally dead and key would rotate in column , we removed the ignition switch and used a new one to see if car would run and it did. the rod that controls the switch was damaged as was the column portion that it rides on so... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2007 Chevrolet Tahoe LTZ 5.3L Throttle VIN: 1GNFC13J87 Replaced throttle body unit and performed throttle relearn procedure. There were no visual damage/defects on the old throttle unit. It is possible that just replacing the sensor may have fixed the issue as well. Thank you for your feedback. |
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| 2005 Saturn Ion 2 2.2L Tcc VIN: 1G8AL52F95 thank you for the info. we put a new TCM in and trans shifts and tcc holds now |
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| 2008 Saturn Aura XR 3.6L Air Bag System VIN: 1G8ZV57718 I used a headlight to test integrity of wires to impact sensor. Pulled connector at door and cleaned all terminals, hooked scope to signal wire of sensor and got this wave form, which shows what I see as packets of info on a communications line. But light st... |
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