Question about 1999 Saturn SL

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99 saturn loud revving sound in engine

Loud revving sound when accelerating only in my 99 saturn. Any ideas?

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Start the car and use a spray bottle to spray a bunch of water mist around the top back of the engine where the intake meets the head. If it starts to die you have an intake manifold leak. It\'s kind of a pain to change, but not really technical. Also, clean your throttle body and clean the idle air controller (IAC). Alos consider replacing the Throttle position sensor (TPS). Both are located on the back of the throttle body.

Posted on Dec 21, 2012

  • app_3rp41897
    app_3rp41897 Dec 21, 2012

    Start the car and use a spray bottle to spray a bunch of water mist around the top back of the engine where the intake meets the head. If it starts to die you have an intake manifold leak. It's kind of a pain in the *** to change, but not really technical. Also, clean your throttle body and clean the idle air controller (IAC). Alos consider replacing the Throttle position sensor (TPS). Both are located on the back of the throttle body.

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