'98 Outback Whine

Discussion in 'Subaru Outback' started by Matt, Sep 2, 2003.

  1. Matt

    Matt Guest

    My friend has a '98 Outback with an AT. When we were driving on a brand new
    asphalt road you couild hear this high pitched whine coming from somewhere
    in the front of the car behind the engine but in front of gear lever. When
    he releases the accelerator and coasts it stops. When he goes to accel
    again the whine comes back immediately. Any takers? The car has about 110K
    on it. TIA
    Matt, Sep 2, 2003
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  2. I'd immediately check the circumference of all the tires though it may
    be too late. The center diff clutch pack can't handle different sized or
    extremely different WORN tires being mixed on the car.

    He could try putting the FWD fuse in under the hood. Though I confess
    I'm not sure this would disengage the CD enough to stop the whining.

    Of course, there could be something different going on.

    1 Lucky Texan
    Carl 1 Lucky Texan, Sep 2, 2003
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  3. Matt

    Leon Li Guest

    Leon Li, Sep 3, 2003
  4. I'm not sure I understand your reply. In the AT the center differential
    is built into the tail of the tranny (so I'm lead to believe) and it is
    sensitive to 'torque bind' from use of 1 or more tires of different
    circumference used on the car. Indeed, if you check your manual, you are
    instructed to force the car into FWD mode (with the fuse under the hood)
    if you have a flat and must use the donut spare.

    As I said, the tranny could of course have a problem unrelated to the CD.

    1 Lucky Texan

    Carl 1 Lucky Texan, Sep 3, 2003
  5. Matt

    Decimal Cat Guest

    I could be way off here and/or stating the obvious, but you also might want
    to check the AT to make sure it's got enough fluid in it. .? Just a thought.

    --Decimal Cat
    Decimal Cat, Sep 3, 2003
  6. Matt

    Matt Guest

    Not that I am lazy or anything :) but could you point me to the exact
    article. TIA.

    Matt, Sep 3, 2003
  7. Matt

    Edward Hayes Guest

    The helical gears in the transmission make a soft werrr as the are loaded
    and unloaded. This is normal on every Subaru I've owned including my
    Forester. On smooth asphalt the tires will hum depending on load.
    Edward Hayes, Sep 3, 2003
  8. Since I can't be certain you have a real problem, the beginnings of a
    problem or inherited a problem from someone else PLUS you haven't
    confirmed or denied the present or past mixing of tire sizes on the car.
    I think you will have to educate yourself.

    do a search at USMB for 'torque bind' and/or 'wheel size' or other
    phrases associated with your symptom. Or better, register and post your
    question in a new thread. You'll get good help.


    1 Lucky Texan

    Carl 1 Lucky Texan, Sep 3, 2003
  9. Matt

    Matt Guest

    To the best of my knowledge the tires are and always have been the same std.
    size. I'll check the USMB too.

    The main reason for concern is that I have heard that noise before from a
    old quantum wagon where the a bearing in the rear differential was going

    My old XT-6 AWD AT never made that noise and my 98 Outback 5sp does not

    I could see where a little whine is normal but this is very pronounced. I
    will do some more checking and post a more detailed analysis as you suggest.
    Matt, Sep 4, 2003
  10. Well, given your experience with other vehicles as you list, I'd say
    your in a good position to diagnose this a little deeper yourself. Could
    be you're just experiencing sometype of early failure of a component not
    directly the result of any 'mistreatment'. Still, experimenting with the
    FWD fuse to disable the 'clutch pack' may lead to a solution.

    good luck!

    1 Lucky Texan

    Carl 1 Lucky Texan, Sep 5, 2003
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