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Transmission on stopping, makes a thump

Discussion in '1st Gen. Tacomas (1995-2004)' started by vapovick, Aug 19, 2010.

  1. Aug 19, 2010 at 1:08 PM
    #1
    vapovick

    vapovick [OP] Active Member

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    I took it to the dealer and he said its normal. Anyone out there with experience on this?

    When I come to a stop, the transmission sounds like its dis-engaging or something. It doesn't appear to be causing an issues, and its been doing it the 7 years I have owned it, but I just want to know if anyone else out there has seen/heard this type of behavior?

    1999 Tacoma, AUTO trans, 4x4 2.7liter
     
  2. Aug 19, 2010 at 1:15 PM
    #2
    wooddogg922

    wooddogg922 Well-Known Member

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    Is it the tranny, or the dreaded Tacoma axle wrap?
     
  3. Aug 19, 2010 at 1:21 PM
    #3
    misterquad

    misterquad Well-Known Member

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    I have a theory that I have been testing. I believe it is the transmission shifting down into 1st gear when you completely stop. To test my theory, I shift into neutral as I am stopping. After I stop for a second or two I shift the transmission from neutral into drive. I had been able to repeat the same feeling. And basically satisfied myself that it is normal downshifting.
     
  4. Aug 19, 2010 at 1:34 PM
    #4
    vapovick

    vapovick [OP] Active Member

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    Thanks for the responses everyone. Like I said its been doing this for almost 7yrs without issue. More of a worry really. BTW what is Tacoma axle wrap?
     
  5. Aug 19, 2010 at 1:38 PM
    #5
    misterquad

    misterquad Well-Known Member

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    Have you ever done a burn out and felt the rear end hop? That is caused by axle wrap. The leaf springs bend/twist under torque and spring back into shape causing this jumpy feeling.
     
  6. Aug 19, 2010 at 2:26 PM
    #6
    vapovick

    vapovick [OP] Active Member

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    I am only seeing this behavior when I stop, not on 'take off' I am starting to believe its more of dis-engage than anything.

    Again thanks to all for the responses.
     
  7. Aug 19, 2010 at 9:39 PM
    #7
    Digiratus

    Digiratus Adventurer

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    If you are interested in finding out more about what folks here refer to as axle wrap, there has been a lot written about this topic. Here are some interesting threads, and a good place to start.

    http://www.tacomaworld.com/forum/1s...rward-when-auto-trans-shifts.html#post1900827

    http://www.tacomaworld.com/forum/1st-gen-tacomas/108316-goodbye-axle-wrap-mod.html

    http://www.tacomaworld.com/forum/1st-gen-tacomas/104847-damage-wear-axle-wrap.html
     
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