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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
    #1
    SARTacoma

    SARTacoma [OP] Member

    Joined:
    Apr 1, 2011
    Member:
    #54150
    Messages:
    19
    Gender:
    Male
    Western NC
    Vehicle:
    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!
     
  2. Aug 3, 2015 at 8:57 AM
    #2
    Sthomson77

    Sthomson77 Member

    Joined:
    Oct 13, 2014
    Member:
    #140251
    Messages:
    5
    Gender:
    Male
    First Name:
    Steve
    El Paso Texas
    Vehicle:
    04 4-door 4WHD SR5
    Did you ever find a solution? I have a 2004 with an automatic and 185,000. It started the whine noise a few months ago, in all forward gears. I am sure it is transmission related because I can put it in neutral and rev then engine at any speed rolling down the road. As long as the trans is in neutral there is no noise.

    Thanks in advance,

    Steve
     
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