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Thread: Help!!!!!!!!

  1. #1

    Exclamation Help!!!!!!!!

    Hey guys. I need some help. I have a 2000. Gmc sonoma with a 4.3l in her
    Resintly i went to go to work. A started my truck up and it back fired on me
    The engine stalled out, and when i went to start it again
    The engine revs started pulsating, it would rev to 2000 and start to
    Sound like its going to stall out and then it would go back to 2000. It would keep doing
    That in till i would shut the truck off. A buddy of mine told me to replace the
    MAP sencer and also the evap purge on the intake. I replaced both and
    The problem still is there. Now heres the werid thing i unpluged the
    Mass air flow sencer and the revs stayed at 1500 to 2000. Has any body had this problem befor and know what to do?
    I cant figur this out...
    Btw sorry about my gammer and spelling im typing this on my phone

  2. #2


    Welcome to the G M T C ! Sorry I can't help, but if you post youre question in the "Tech" forum, you might get more attnetion. Good luck!

    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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