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Posted

2021 Silverado 6.2 with 67,000 miles. Jump start my truck because it was dead and right away i could hear a loud misfire. Check with code reader and it was a misfire in cylinder 2. Replaced spark plug in cylinder 2 and cleared code. Code did not come back within 5 miles I drove but truck is still running weak and I can still hear misfiring. Could the jump start have anything to do with this or just a coincidence it happen at the same time and do you guys recommend replacing all spark plugs before I diagnose something else. Thanks. 

  • 3 weeks later...
Posted

I've heard a number of issues with fuel injectors going bad on the 6.2's. 

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