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Professional Automotive Repair Technical Discussions for April 22, 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 | |
| 2011 GMC Terrain SLE 2.4L high fuel trim VIN: 2CTALMEC0B have replaced the upper catalyst a second time because they are after market and ive run into problems before. upper o2 is switching normally down stream at .7 to .8 at cruise up stream switches normally and down stream stuck at .15 at idle. smoke tested i... Trouble codes: P0171 |
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| 2004 Other GM VY 3.8L MIL Lamp on VIN: 6G1YK32A84 Customer complain of MIL light on. Found ECU staying in open loop even after warm up on 1800rpm for 5 min. and coolant temp. at 93C. As you see in the Testing and Results readings. Check O2 heater circuits for voltage drop under load, OK. Checked harness f... Trouble codes: P0151 (Left O2 volt low) |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2008 Buick Enclave CXL 3.6L liftgate latch VIN: 5GAER23798 Thanks to all who replied to my request!!! The repair for this issue turned out to be a failing pinch sensor or obstruction sensor, We had searched these items, voltage tested them and checked the ohms by all the books. Merely by accident we happened to lay a ... |
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| 2003 Chevrolet Silverado 3500 LS 6.6L Excessive Emissions VIN: 1GBJK39123 Sorry it took so long guys! I still have the truck sitting here in the shop I still need to figure what?s gonna be done . I showed the owner what the truck is doing now and recommended all injector$ and return lines and eventually injector cups. He almost had... |
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