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Transmission shifting hard

Discussion in '1st Gen. Tacomas' started by buzzard1992, Jun 13, 2012.

  1. Jun 13, 2012 at 12:39 PM
    #1
    buzzard1992

    buzzard1992 [OP] Yep

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    Summerville, SC
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    01 4wd trd, 255/85/16 km2s
    5100's with eibachs. And 255/85/16 km2s
    Okay I have a 2001 3.4 v6 automatic. When drivin it seems to shift fine. But when I'm comin to a stop it's shifts hard back into first right when I'm about to stop. I plan on draining all the transmission fluid, all of it. I'm gonna change the filter in there too. I assume there is one. I don't have an owners manual so what type of fluid should I use. I called Toyota and they said just straight ATF. But my buddies who works at a auto parts store told me in his book it says dextron 3 or mercon 5. Which is it? And maybe some Lucas stop slip as well. Do y'all think this may solve my problem. And have any of you had this issue and what did you do to fix it. Any help is appreciated. Thanks
     
  2. Jun 13, 2012 at 12:42 PM
    #2
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Don't put any thing in it but ATF.

    ATF D–II or DEXRON®III (DEXRON®II)
     
  3. Jun 13, 2012 at 12:45 PM
    #3
    buzzard1992

    buzzard1992 [OP] Yep

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    Alex
    Summerville, SC
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    01 4wd trd, 255/85/16 km2s
    5100's with eibachs. And 255/85/16 km2s
    Okay so it is straight aft then? I'm just really confusing to me. Sorry for all the questions
     
  4. Jun 13, 2012 at 12:47 PM
    #4
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Beech Creek
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    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Yes, just use Dexron III. If you can't find it, use a higher number Dexron like IV or V. It's backwards compatible.

    You should only need about 3 quarts since it's just a drain and fill.
     
  5. Jun 13, 2012 at 12:50 PM
    #5
    Blackcat10

    Blackcat10 Well-Known Member

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    Fluid can cause hard downshifts or ECM may need to be flashed to restore parameters. Try these if it happens again.
     
  6. Jun 13, 2012 at 12:51 PM
    #6
    buzzard1992

    buzzard1992 [OP] Yep

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    Summerville, SC
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    01 4wd trd, 255/85/16 km2s
    5100's with eibachs. And 255/85/16 km2s
    Well what if I want to take it all out? I wanna make sure it's got all the same transmission fluid. And I know the previous owner changed it but I have no Idea what he put in
     
  7. Jun 13, 2012 at 12:53 PM
    #7
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    Beech Creek
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    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Then it will need a flush, which is best handled by a garage or the dealership.
     
  8. Jun 13, 2012 at 12:58 PM
    #8
    buzzard1992

    buzzard1992 [OP] Yep

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    Alex
    Summerville, SC
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    01 4wd trd, 255/85/16 km2s
    5100's with eibachs. And 255/85/16 km2s
    Okay yeah that probably would be the best thing to do. I don't run this truck very hard to of caused the transmission to do this. So my guess is it's somethin to do with the previous owner
     
  9. Jun 13, 2012 at 1:34 PM
    #9
    buzzard1992

    buzzard1992 [OP] Yep

    Joined:
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    Gender:
    Male
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    Alex
    Summerville, SC
    Vehicle:
    01 4wd trd, 255/85/16 km2s
    5100's with eibachs. And 255/85/16 km2s
    Anyone else have any thoughts on if this transmission flush will cure it or if there is somethin else I should do?
     
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