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Thread: Help pls. Whining noise under power...300tdi Auto!

  1. 9th April 2011, 02:36 PM #1
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    armandnel
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    Question Help pls. Whining noise under power...300tdi Auto!

    G'day.

    What is the go with 95 300tdi auto box that only makes a whining noise under power from about 50km/h upwards?

    As soon as I let the accelerator go it stops but starts as the power comes on. It is a loud whining noise, almost like a wheel bearing but worse. It also makes a bit of vibration.

    I have new oil in both diffs, t-case (which is reconditioned) and auto box. Wheel bearings are fine.

    Still new to the Landy world so give it to me pls

    Armani
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  2. 10th April 2011, 05:55 PM #2
    Pierre
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    Give us some clues, lad. Whining from where? Back, front, centre, lefthand seat? It sounds like characteristic gear/bearing loading/unloading noise, and I'd guess from transfer case to start with.

    Did it happen before you changed the transmission oils?

    But the general location will give major clues to the probable cause.

    Pete
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  3. 10th April 2011, 08:48 PM #3
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    armandnel
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    Thx Pete

    It sounds forward from the center and changing oils did not change the noise. All the gears work perfect in hi and low incl. dff lock. I am guessing it is not the torque converter and may be the front diff?? Will try it without the front drive shaft to isolate the problem. May have a bearing playing up?
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  4. 12th April 2011, 01:40 PM #4
    PhilipA
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    What is the go with 95 300tdi auto box that only makes a whining noise under power from about 50km/h upwards?
    Maybe it's your wife shouting "What's that terrible noise" over and over as the revving Tdi assails her ears.

    Regards Philip A
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  5. 12th April 2011, 03:21 PM #5
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    loanrangie
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    Quote Originally Posted by PhilipA View Post
    Maybe it's your wife shouting "What's that terrible noise" over and over as the revving Tdi assails her ears.

    Regards Philip A
    That was my first thought , make her sit in the back - but owning a tdi auto i can tell you there is no such noise when i hit the loud pedal.
    Is it constant and does it increase/decrease with the revs ?
    MY08 TDV6 SE D3- permagrin ooh yeah
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  6. 13th April 2011, 11:35 PM #6
    bblaze
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    Not one of your sepentine drive belts or bearing on the front
    cheers
    blaze
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  7. 21st April 2011, 04:06 PM #7
    Pierre
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    What's the go, champ? Did the left hand seat passenger see the post and you're still in the doghouse and can't test for noise in the front diff?

    My bucks are still on the transfer case...especially if it has been reconditioned.

    Pete
    Last edited by Pierre; 21st April 2011 at 04:08 PM. Reason: add
    Dizzie, 08 D3 TDV6 SE
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