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Professional Automotive Repair Technical Discussions for October 17, 2022 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 | |
| 2005 Cadillac CTS 3.6L No Start, No ECM communication VIN: 1G6DP567X5 We thought we had a "typical" ECM failure on this CTS and had just repaired another 05 CTS with reman ECM a few days before this nightmare. Key on, no check engine light, no communication. Key stuck in igntion. We ran through the GM service bulletin regard... Trouble codes: U0100 (TCM lost communication withECM), U1000 (Class 2 serial data problem--in all modules) |
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| 1992 Chevrolet Lumina 3.1L Poor Idle Quality, Misfire VIN: 2G1WL54T5N Thanks to all that read this. This little gem was a grandma car, sat for about 2 months now owner wants his daughter to use it. Customer complains of a miss or stutter when going at 35-40 steady speed cruise. I drove it and sure enough it's there. I scoped... |
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| 2010 Chevrolet Equinox LT 2.4L no communication with ECM, TCM VIN: 2CNFLEEWXA Vehicle towed in, no start no crank, transmission installed at a different shop, customer was overcharged and does not want to return. Vehicle started fine at other shop, drove home and would not start next day. No communication with ECM or TCM. We can com... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 Chevrolet Tahoe LT 5.3L Valvetrain VIN: 1GNSKBE00B Thank you everybody for your help. It was indeed the VLOM. It must have been the cause of the original lifter failure and then quickly caused the new lifter to fail. Lesson learned, we now replace the VLOM with EVERY GM lifter job we sell. Thanks again. |
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| 2010 Pontiac G6 2.4L Steering Wheel VIN: 1G2ZA5EB3A Thank You to ALL Who responded. Well it was the present mantra, JUST BECAUSE IT IS A NEW PART DOES NOT MEAN IT IS A GOOD PART ! Fortunately the SECOND NEW PART was a good part and all is well. Thank You Again for your input. |
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