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Professional Automotive Repair Technical Discussions for August 7, 2016 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 | |
| 1990 Chevrolet C1500 Cheyenne 5.7L Poor Idle Quality, Surge VIN: 2GCEC14K5L Started out with a slightly surging idle while Trying to get vehicle to emissions test. Propane enrichment over TBi increased RPM.Found vac leaks at TBI base, EGR and vacumn nipple . replaced and repaired all. Now drops RPM with propane.No other leaks indicate... Trouble codes: 43 (knock circuit), 42 (spark control) |
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| 2015 Chevrolet Express 3500 6.0L svc stability VIN: 1GCZGUCG9F This van driving me nuts. Stabilitrak light comes on. Co710-5a Steering Position Signal Plausibility Failure. It mostly comes on when you make a turn. You do not even have to move van, just touch steering wheel slightly. We have reviewed TSB's. Checked connect... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2004 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 1GNEC16Z44 After checking and adding a redundant ground and the mil coming back with same code I proceeded to R&R t.a.c module, the problem has not reoccur since so Im calling it a fix. Thanks every one for the helpful information on what to look for, it'll help next tim... Trouble codes: P2135 (TP correlation). |
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| 2002 GMC Safari SLE 4.3L Misfire, MIL Lamp on VIN: 1GKDM19XX2 thanks for all the advice,this is one of those vehicles that just isnt broke enough to give you an obvious failure so your forced to dig deep.In the end the customer went for a head tear down and advise,we found a bad valve spring on number 4 exhaust valve. re... Trouble codes: P0300. |
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