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2001 Ford Mustang Question: Engine speeds up and down.

 

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cottonball, Comer, GA, November 05, 2010, 20:32
 Rookie

Engine seems to speed up and slow down even after it warms up. I read somewhere that something dealing with the throttle body needed removing and cleaning with carburator cleaner. Can anyone explain exactly what needs to be done?

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  • Answer #1

    November 05, 2010, 20:38
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     Master

    the deposits at the throttlr plate can cause this kind of issue
    more than that, the idle air valve is a more common failure. have it check for operation.

    Roy

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