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Griding noise shifting in/out 4WD modes

Discussion in '1st Gen. Tacomas (1995-2004)' started by ywen, Jan 11, 2010.

  1. Jan 11, 2010 at 7:25 PM
    #1
    ywen

    ywen [OP] Well-Known Member

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    Hey guys, finally got a Tacoma.. On my 03 Tacoma, I've followed the instructions for shifting from 4Hi -> 4Lo..

    Truck stopped, shifted transmission to N and then shifted from 4Hi -> N -> 4Lo.

    When I hit the gate for 4Lo, I heard a horrible grinding noise... WTF?

    Same thing going back to 4Hi with the truck in N.
     
  2. Jan 11, 2010 at 7:49 PM
    #2
    ywen

    ywen [OP] Well-Known Member

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    I should also mention that when shifting between Lo and high, I waited at the N position for the transfer case shifter.. Could that have caused it? Should I have shifted in on swift motion?
     
  3. Jan 12, 2010 at 8:12 AM
    #3
    ywen

    ywen [OP] Well-Known Member

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    Hmm my issue must be unique... :confused:
     
  4. Jan 12, 2010 at 8:54 AM
    #4
    Kuneff

    Kuneff Carpe Diem

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    try it in a swift motion and see if it grinds?
     
  5. Jan 12, 2010 at 2:09 PM
    #5
    clarkie152

    clarkie152 Well-Known Member

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    might sound stupid, but make sure you pressed the 4wd button first.

    on mine i engage 4wd as im slowing down, come to a stop throw the tranny in N then shift to 4lo and it works
     
  6. Jan 12, 2010 at 2:19 PM
    #6
    ywen

    ywen [OP] Well-Known Member

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    clark: it as in 4WD.. :)

    How swift do you shift into 4Lo? I was shifting pretty slow, anticipating the grind each time.. perhaps that's why? two gears touching but not really locking together..

    Also what is the effect of having the trasnfer case in N and transmission in D? truck doesn't move.. that basically disengages the center lock right?
     
  7. Jan 12, 2010 at 4:59 PM
    #7
    Kuneff

    Kuneff Carpe Diem

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    I have always been told, and understood to go into low range you put the tranny in neutral on a manual, or park on an auto.
     
  8. Jan 13, 2010 at 2:28 PM
    #8
    clarkie152

    clarkie152 Well-Known Member

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    ywen, i just do it one swift motion, you might feel some vibration, but its jus the gears lining up.

    ive always done it in N...just one click away from D
     
  9. Jan 13, 2010 at 4:48 PM
    #9
    4WD

    4WD cRaZy oLdmAn

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    I'll engage my transfer from 2H to 4H "on the fly" But I always come to a stop before I go from 4H to 4L. It may be a "SYNCRHO" thing,remember that sychro's in manual trans is what allows smooth shifting (upshift & down shift) Doudt there are any in an auto but the transfer case almost surely has a few sychros in it , although there may not be any at all on the 4lo side of the gear box..........:mudding:
     
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