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Professional Automotive Repair Technical Discussions for March 17, 2021 International Automotive Technicians' Network (iATN) - Members Only |
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Open Help Requests for GM
| Help Request | Answers | |
| 2010 Chevrolet Traverse LT 3.6L Misfire, MIL Lamp on VIN: 1GNLVGED1A This Traverse came from a used dealer who sold it. It will intermittently begin to run rough and always log codes p216a & p216d. It will happen randomly cold or hot, in the shop or on the road. Some times it will log misfire codes on cyls 235&6. It had p06... Trouble codes: P216A, P216D |
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| 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 | |
| 2008 Chevrolet Silverado 1500 WT 4.3L Tpms, Srs VIN: 1GCEC14X98 Thanks for all the replies. Have had no trouble scanning these systems on other similar vehicles with my Snapon scanner, but customer chose not to pursue repairs, chose to buy another vehicle. |
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| 2004 GMC Sierra 2500 HD SLE 6.6L Nothing works VIN: 1GTHK23124 It was a bad ground to the firewall. Thanks for all the help! I grounded pin 4 on the obd2 connector and everything started working, so that led me back to looking for a bad ground. |
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