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cleaning

  1. Replace/clean pcv valves w/pics

    Gen 8 Do It Yourself Maintenance
    My 13 ltz is having a rough idle when when in gear at a stop sign. I read through and found it could be the valve is clogged or the throttle body could need cleaning.I could not find a detailed “how to” so here you go! I always disconnect my battery before doing anything (except filling washer...
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