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S4 front end noise when cold

andybnwc Mar 8, 2009

  1. andybnwc

    andybnwc Member

    Been having a rattle noise when cold from the front of the engine , i replaced the serpentine tensioner after another noise . But after that another noise started. To check its not the timing belt tensioner or waterpump i decided to run without serpentine belt on to exclude this.

    so today i pulled the serpentine belt off to day when cold and fired up , no noises at all . I have lightweight pulleys on . I manually turned alt one ,fan and the bottom centre and bottom right all seem tight and spin freely with no noise. However the top one feels like a bit of play and makes a light knock when quickly turned left and right with fingers is this normal ?

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