Question about 2005 Ford Five Hundred

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My engine revs and trys to take off while i am sitting still, the car would be in drive and my foot on the brake, It revs up and sometimes when i let off the break it surges forward then shuts down in engine safe mode... then the engine light comes on...

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Get the codes pulled.

Posted on Apr 04, 2018

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Read the check engine codes, that will narrow dowm where the issue is bwfore u start throwing parts at it by guessing

Posted on Apr 04, 2018

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My guess is the tps.

Posted on Apr 04, 2018

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  • Master
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The idling may be a loose connection to the "idle air control valve". if the control valve connection is secure, then it could also be a bad Throttle Positioning Sensor (TPS). To test the TPS, tap it with a screwdriver while the engine is self-revving, and see if the reving changes when tapped. if its not the TPS, then try cleaning the throttle body.

..

Posted on Mar 26, 2011

  • brandijdanie Jun 12, 2011

    i have a 2006 500 doing the same thing and i have put it on several computers and they all say the same thing.. that i need to replace the idle air control valve the only problem is that when i contacted ford and gave them my vin # they told me this car doesnt have that valve. any suggestions??

  • Charlie Towne
    Charlie Towne Apr 03, 2018

    I have the same exact issue with my 2005 ford 500. The RPMS keep bouncing, have cleaned throttle body, MAF sensor is clean and entire vacuum system checked for leaks. nothing. yet the problem persists

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