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Thread: 5.3 misfires, can't find the problem!

  1. #21
    Join Date
    Jan 2012
    Posts
    13
    ok, coil swap tonight, will report back. Thanks for the advice!

  2. #22
    Join Date
    Jul 2008
    Location
    Florida
    Posts
    147
    Clean the MAF sensor. What brand plugs you running? Check for leaks on that cylinder.
    '04 Silverado RCSB with a crank bolt.

    You know your truck sounds good when cops ask you to get on it.

    Idle Clip

  3. #23
    Join Date
    Jan 2012
    Posts
    13
    RESOLVED! Swapped ignition coils 4 to 2 and vice versa, was beside myself when I read the misfire on cylander 2 code! Ordered new coil and will swap soon. While many said i should have started here, it was nice to have a chance to verify the function of the rings, injectors, and other coils. Computer is off to blackbear now that issues are resolved. Thanks to everyone for their help!

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