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2002 3.4l auto 4wd tans whine

Discussion in '1st Gen. Tacomas (1995-2004)' started by SARTacoma, Apr 22, 2013.

  1. Apr 22, 2013 at 5:39 AM

    SARTacoma [OP] Member

    Apr 1, 2011
    Western NC
    02 Tacoma 3.4L 4wd
    No mods... bone stock
    After performing a search I found no definitive solutions or advice on AUTOMATIC transmissions with the following issue:
    Park, engine idle = nothing odd
    Reverse, engine idle = whine from (under the truck) assume trans or transfer case?
    Neutral = same as park
    Drive (L1, L2) = same as Reverse.

    When engine RPM increases, it sounds like it's "spooling up" much like an old Allison Trans I had in a full size truck years ago.

    I know this isn't normal. Anyone have any first-hand experience or advice?
    250,000 miles. Trans was replaced at 150,000 by a reputable trans dealer and had zero issues till now. Everything shifts / runs fine but I'd like to fix the problem before it costs me yet another $2500 transmission.

    Thanks, y'all!
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