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service engine light

  1. 01-04.5 LB7 Duramax Powertrain
    Hey guys, yesterday i was headin to work in my 02 duramax and my truck revved up and i think it came outta 5th gear and into 4th and the service engine light came on. I was going about 65 on cruise, and i hit the gas to accelerate to go around this car and thats when it happened. Any ideas? to...