Question about 1998 GMC Sierra

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2004 sierra idleproblem

My truck starts up and will stay running as long as you continue to holddown the peddle down it will not itle by its self

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  • Bruce Bracey
    Bruce Bracey May 11, 2010

    Can you tell me what engine you have in the truck.

    Let me know.

    Regards,

  • maddmike71 May 11, 2010

    how does it act while driving and stopping at lights or signs?

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  • 1,055 Answers

Give it a complete tune up and change the fuel filter if that doesnt take care of the problem look for a vaccume leak

Posted on Feb 26, 2009

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