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Professional Automotive Repair Technical Discussions for April 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 | |
| 1997 GMC C3500 Sierra SL 7.4L Excessive Emissions VIN: 1GDJC34J6V As this is a heavy duty vehicle, it has to pass a tail pipe test in Oregon and failed due to high hydrocarbons. The check engine light was never a problem until they got in line for emissions testing. I verified that it had flat lined and replaced B2S2. I ... Trouble codes: P0157 |
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Fixes & Summaries for GM
| Fix/Summary | Answers |
