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4 Wheel Drive Concern

Discussion in '2nd Gen. Tacomas' started by Drouse, Dec 16, 2013.

  1. Dec 16, 2013 at 7:54 AM
    #1
    Drouse

    Drouse [OP] Well-Known Member

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    Well we got some snow this wkend in NEPA and while out and about was having some slippage so threw it in 4x4. Everything seemed fine up until I arrived at Best Buy and went to park. As I turned the wheel a little more the truck started to jerk. This only happened when making a hard turn (parking - turns on side streets). Is this normal?? I owned a 2004 Taco prior to this and never experienced anything like this while in 4wd. Any ideas??
     
  2. Dec 16, 2013 at 7:57 AM
    #2
    SoCaltaco65

    SoCaltaco65 Well-Known Member

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    yup, hopefully you were in 4H? turn it off in the parking lot when your turning hard.
     
  3. Dec 16, 2013 at 8:08 AM
    #3
    Drouse

    Drouse [OP] Well-Known Member

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    Ok - As long as it's normal. Yeah I was in 4H. Like I said never experienced this in the 2004 so definitely worried me. Didn't want to hurt anything.
     
  4. Dec 16, 2013 at 8:13 AM
    #4
    rat107

    rat107 Well-Known Member

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    If you drive on pavement in 4WD and make hard turns it will jerk and bind up. That's normal.
     
  5. Dec 16, 2013 at 8:22 AM
    #5
    bjboucher

    bjboucher Mama says Tacoma World is da devil!

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    I would put it in 2 wheel drive if you need to make sharp turns on pavement. It's not good for the driveline to bind it up like that.
     
  6. Dec 16, 2013 at 8:23 AM
    #6
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    Normal
     
  7. Dec 16, 2013 at 8:25 AM
    #7
    Paleus

    Paleus Well-Known Member

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    Normal, but not good to do a lot.
     
  8. Dec 16, 2013 at 8:28 AM
    #8
    brian

    brian Another Traitor

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    Normal. Welcome to the world of 4WD :) They all do that unless you drove an AWD which has a center differential :)

    DON'T continue to drive on dry pavement in 4WD. You WILL break something.
     
  9. Dec 16, 2013 at 8:30 AM
    #9
    On An Island

    On An Island Assimilated

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    As I understand it, that's caused by the different turning diameters of the L&R front tires causing the engaged 4wd gearing to bind. This bad.
     
  10. Dec 16, 2013 at 10:17 AM
    #10
    sparkystaco

    sparkystaco Well-Known Member

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    Not true,


    it's caused by the different turning radius of the front versous rear
    ie: the rear tires travel a shorter distance than the front tires in a turn
    in snow its ok to do
    on wet pavement its not good (don't do it)
    on dry pavement its a no no (could over stress parts and break sh*t)
     
  11. Dec 16, 2013 at 10:38 AM
    #11
    OZ-T

    OZ-T All of those moments....will be lost.....in time

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    wut

    If that was the case , why wouldn't the truck bind up every time you turned the wheel in 2WD ?
     
  12. Dec 16, 2013 at 10:47 AM
    #12
    Mademan925

    Mademan925 Senor Taco

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    enough to go over stuff
    Normal. I take it out of 4 wheel for sharp turns. Also if Im in a hard spot and I want it in 4wd. Ill just do a 3 point turn with micro turns.
     
  13. Dec 16, 2013 at 10:49 AM
    #13
    aaronbuell

    aaronbuell Well-Known Member

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    Because the frontend is under power
     
  14. Dec 16, 2013 at 10:53 AM
    #14
    Paleus

    Paleus Well-Known Member

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    Not just because it is under power, but because there is no differential between the front and rear axles. The front and rear wheels are locked together.
     
  15. Dec 16, 2013 at 10:54 AM
    #15
    Bellis

    Bellis friggin rad

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    because the diffs are no longer connected through the transfer case which allows them to spin at different speeds in 2wd
     
  16. Dec 16, 2013 at 10:55 AM
    #16
    Paleus

    Paleus Well-Known Member

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    The front and rear axles are not linked in 2WD. They can turn independently.
     
  17. Dec 16, 2013 at 11:15 AM
    #17
    CoTacoTRD

    CoTacoTRD He who walk with a Cane

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    A little of this and a little of that.
    Huh. Never heard it explained this way. It has always been explained as left and right tires having a different turning radius. The above make sense for a sharp (practically locked)turn but on an average turn the radius front to rear is the same and different inside track to outside track. Both situations can cause binding on dry payment and 4H should be removed.
     
  18. Dec 16, 2013 at 11:18 AM
    #18
    SoCaltaco65

    SoCaltaco65 Well-Known Member

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    Sigh...

    and
    pavement was more then likely wet...
     
  19. Dec 16, 2013 at 11:39 AM
    #19
    Paleus

    Paleus Well-Known Member

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    Rotational differences on inside track to outside track on the same axle don't matter because there is a differential on both the front and rear axles. The problem arises because there is no differential between front and rear axles when 4x4 is engaged. So the problem is not that left and right wheels on the same axle rotate different amounts or that front and rear wheels on the same side of the truck rotate different amounts (although in tight turns they do), but that front inside and rear outside (or vice-versa) wheels have rotational differences.
     
  20. Dec 16, 2013 at 11:51 AM
    #20
    DoorDing

    DoorDing Thank you, Nancy Roman

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    ^
     
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