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  1. #1

    Default 1996 GMC Sonoma, 2.2L/ 5 speed, rough idle!!!!

    I have a 96 sonoma I recently got to cut back on gas, It has a very bad idle, almost like a miss while idling, but is smooth and runs fine when driving. I have replaced wires, plugs, and both coil packs and one injector, this helped a little but still bad, and vacuum hoses seem to be good, it has some wire damage from a rat from sitting up, I have repaired most of that, but any help would be appreciated.

    Thank you

  2. #2


    Welcome to the G M T C ! Have you taken it to see if any "codes" come up when scanned? Around here, the "Auto Zone" parts stores will do scan for bad parts.

    2010 Z/71 Colorado C/C
    Black 4X4 w/5.3L V8
    2007 Winnebago Adventurer
    w/8.1L Chevy & Allison 6spd.
    Canyon Lake, Texas

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