missing bucking

  1. jerry mize

    98 z71 need help guys

    I have a 98 5.7 vortec 4x4 it's my baby love this truck its developed a strange issue though and I cant seem to pin point it truck still has lots of power no bogging or anything but has miss fire code and bucks and constant rpm or when towing under easy or hard throttle does fine though ? Any...
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