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Thread: sienna whistle noise!

  1. #1
    Join Date
    Dec 2005
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    Default sienna whistle noise!

    Hi every one!
    I am very new here and would like to join in this forum to share some helpful info about cars. I got 2001 sienna and had 90k km on it, the engine look ok no oil leak or anything but when I start the vehicle in diffrent weather condition, some time I heard a sound like whistle noise came the alternator. The sound came off after warmimg up or so... I gessing the bearing of the alternator is dry or turning bad, so anyhow can I grease it or lubricate it? How are every one think? is that the problem or something else. Thanks in advance!


  2. #2
    Join Date
    May 2004
    New York
    My Ride
    Subway / Rav4
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    Take it down to a Toyota dealership for an oil change, and just ask them the same question. Clarify before hand if they will charge you to inspect the problem, or just guess at it.

    "Having a war about religion is like having a fight over who's got the best invisible friend" - Yasser Arafat

  3. #3
    Join Date
    Jul 2005
    My Ride
    HONDA & Nothing Else
    Rep Power


    Sounds like a drive belt issue to me.

    Check the tension of your accessory drive belts, if they're loose, tighten them up. OH YEAH, don''t do this while the engine is running.

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