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Audi 100 Aut. knocking sound

Discussion in 'Classic Audi Forum' started by vw&saab, Oct 17, 2009.

  1. vw&saab
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    vw&saab New Member

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    [Oct 17, 2009]
    New on this forum :yes:

    I have a 1992 Audi 100 2.3E Automatic and it's got a knocking sound from under the shifter when idling. If I push the brake pedal in the sound stops. If i pump on the brake pedal I can hear the knocking in the same frequency I pump the pedal. I think it's strange the sound is right back where the shifter is and not in the engine bay. It can't be the vacuum pump then?

    (Sorry for the english...)
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