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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for May 4, 2021
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
2003 Chevrolet Silverado 3500 LS 6.0L MIL Lamp on VIN: 1GBJK34U93
Got this truck in for fuel gauge always reading empty. Had code P1172. Erased code and fuel gauge worked. Replaced vent valve per tsb and in couple days was back with same code. Warrantied out rear pump as customer had previously replaced and it emptied th... Trouble codes: P1172 (fuel transfer pump insufficient flow)
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2011 Chevrolet Impala LT 3.5L No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 2G1WB5EK7B
Bought car for resale and the next day the problems arose, if it does start it will start and run fine until the tack drops out and the engine starts running rough, codes P0300 and P0336. Checked codes and ordered a crank sensor, cleaned surface on block a... Trouble codes: P0336
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Fixes & Summaries for GM
Fix/Summary Answers
2017 Chevrolet Silverado 1500 LT 5.3L MIL Lamp on VIN: 3GCUKREC7H
As suggested: -checked pre-cat backpressure, ok, no performance issues as normally found with clogged cats -checked intank fuel pump supply, ok -attempted update for PCM with Drewtech, unable to program pcm... advise customer dealer visit required to update -c... Trouble codes: P2097, P2099.
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2017 Chevrolet Silverado 1500 Custom 4.3L factory brake controller VIN: 1GCPWBEK2M
First; Thank You all for responding. As some said this truck does not have that capability. We installed aftermarket unit, which is working good. Thanks again John [...]
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