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Engine Note on Idle

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by gphilla, Jan 25, 2012.

  1. gphilla

    gphilla Member

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    For the last couple of days my engine note (2.0tdi 140) has changed somewhat on idle, its hard to describe how its changed but i just know it has ??
    Car still pulls really well and drives and feels as norm and soon as you touch the throttle it sounds like normal ?

    Any ideas of where to start checking ??
     
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  3. Marrow

    Marrow Member

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    oh dear not more trouble mate could it be linked to compressor failing ?
     
    #2 Marrow, Jan 25, 2012
    Last edited: Jan 25, 2012
  4. rowdyboy

    rowdyboy Member

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    Or the alternator pulley.
     

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