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Rough idle after cambelt change

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by , Jun 14, 2005.

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    Guest

    1997 Audi A4 2.8 Quattro, tip.

    Just gt my car back after a cam belt change and at idle it feels as though one cylinder is missing. Also under 2000 revs while driving there is a vibration, again as if it is missing.

    Once above 2000 revs the car behaves as before, being smooth and responsive.

    Does anybody have an idea what could be wrong? Is it a case of having the garage replace the belt or is it somthing simpler?
    #1
  2. Audination
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    Audination Member

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    Sounds like they have missed a tooth on replacement, however this should not happen and it would be a real sloppy job if this is the case, take it straight back to the stealers to sort out, assuming you got it done there!
    #2
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    Guest

    The car is going back on Friday, it was running fine when it left us was their response.

    If they had missed a tooth, would it still run?
    #3
  4. peteA3tdi
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    peteA3tdi Member

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    [ QUOTE ]
    The car is going back on Friday, it was running fine when it left us was their response.

    If they had missed a tooth, would it still run?

    [/ QUOTE ]

    yes it will still run but not very well
    did they service the car aswell or just a new cambelt?
    #4
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    Guest

    They serviced the car a week before the cambelt change.

    Could it be as simple as a loose HT lead? Could they have moved one while changing the belt?

    Seems strange that the car runs great above 2000 revs but is rough below that.
    #5
  6. peteA3tdi
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    peteA3tdi Member

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    they may have removed plugs to make turning the engine over easy to recheck the marks still line up and not refitted one lead fully, or a plug or lead/coilpack may have gone faulty
    if the timing belt was out the MIL lamp should come on
    #6

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