Question about 2002 Audi A4

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Vibration when idling and between 40-70 mph

Replaced timing belt and put on four new tires on 2002 Audi A4. Now there is a vibration when idling and also between 40-70 mph that feels like engine is running rough, but tachometer holds steady. Vibration occurs going up hilss, going down hills, but sometimes I can find a speed where I get no vibration.

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  • clive pearson
    clive pearson May 11, 2010

    Hi I am vortash I need you to check something out for me before I comit to what i think it may be .. start the car and set the idle speed at approx 500 to 800 RPM , take a heavy duty screwdiver or a 12" piece of broom handle and hold it against the head . Place you ear on the end of the handle and see if you hear a rumbling ( knocking sound ) or if you feel the vibration .. we need to eliminate some possibilities first . ... Regards Vortsh

  • Anonymous Mar 18, 2014

    car vibrates over 70 mph

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  • Audi Master
  • 14,036 Answers

Check out harmonic balancer .

Posted on May 26, 2009

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