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Next Problem: Exhaust drone/boom 3000rpm

Discussion in 'A3/S3 Forum (8L Chassis)' started by AL_B, Aug 30, 2003.

  1. AL_B
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    AL_B Active Member

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    [Aug 30, 2003]
    Right, next problem.

    Something I've noticed over the last 2000 miles or so (car has done 14500miles) is a droning sound as the drop through 3000rpm.

    But at a constant speed/revs there's no droning. I realise some people experience boominess on the motorway, but its something that doesn't really affect my car.

    My guesses are: exhaust or could it be the dual-mass flywheel problem that was mentioned on the old site?

    The best way to reproduce the problem is:
    5th gear, 70mph. Lift-off the accelerator, and let the revs and speed drop. As the cars speed falls past 65mph/3000rpm the drone starts, and continues until speed is under 60mph.

    Any ideas?

    AL
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  3. Veracocha
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    Veracocha New Member

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    [Aug 30, 2003]
    Does it sound like a jumbo jet taking of in the distance? I get this thrumming noise quiet often but ignore it.
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  4. pwnorman
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    pwnorman Member

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    [Aug 30, 2003]
    I've the same problem audi dealer claims to know nothing (why is that not a suprise).
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  5. AL_B
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    AL_B Active Member

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    [Aug 30, 2003]
    Benjy,

    I would describe the sound to be more like "blowing over a milk bottle". (Don't anyone suggest my DV is gone, I know it isn't). So its more of a deep, resonating sound.

    Cheers

    AL
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