S70 smog pump whine

Discussion in 'Volvo S70' started by mkr5000, Jul 1, 2008.

  1. mkr5000

    mkr5000 Guest

    When these start to whine (and loudly) what kind of life, (generally)
    do they still have in them?

    Only whines for a minute or so when I first start cold engine.

    Do the check valves "usually" cause the problem?

    Also, what happens when the motor fails? check engine and a
    code?...any driving problems?

    mkr5000, Jul 1, 2008
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  2. mkr5000

    Tim.. Guest

    If you take the thing apart and clean the mud / water / crap out of the
    motor and bearings now and re grease it, then it will usually live on for
    several years yet.

    The one way valve sticking open and allowing water vapour from the exhaust
    is what causes it, so replace them at the same time.

    If the air pump fails / seizes etc then this will bring on the check engine

    Tim.., Jul 7, 2008
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