Question about 1999 Mercury Cougar

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Engine ideling I have a 1999 mercury cougar 4 cylinder the problem is the engine accelerates without pushing the gas pedal and the the engine idel goes up and down can you please help me with some advices thank you.

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  • absi10 Feb 06, 2009

    why the RPM idel goes more than the number 1

  • Anonymous Feb 10, 2009

    i'll be going down the road and just all of sudden engine will start jerking and you can let off of the gas and the rpm's still jump up and down.

  • yadayada
    yadayada May 11, 2010

    DO U MEAN IT IDLES TO FAST, MUCHO RAPIDO?

  • yadayada
    yadayada May 11, 2010

    I DON'T UNDERSTAND WHAT U ARE SAYING YOUR PROBLEM IS, PLEASE RETHINK THE ISSUE AND REWRITE THE PROBLEM.

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Check for a vacuum leak around your intake probably close to the throttle body

Posted on Feb 06, 2009

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