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Rear wheels lock up when i make sharp turns in H4

Discussion in '2nd Gen. Tacomas (2005-2015)' started by A51TACO, Oct 21, 2010.

  1. Oct 23, 2010 at 8:28 AM
    #21
    Fortech

    Fortech Well-Known Member

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    This link should help: http://consumerguideauto.howstuffworks.com/your-ride-4wd-vs-awd-cga.htm

    Nope, above link should describe the differences


    Its up to the driver to be educated enough to use the system correctly. Such instances are described in the owners manual.
     
  2. Oct 23, 2010 at 9:28 AM
    #22
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    An AWD (All Wheel Drive) vehicle is going to have a viscious coupling (differential) in the center, allowing the drive train to not bind, while a 4 wheel drive vehicle doesnt have this, and the front and rear drives are locked together, getting equal power from the engine.
     
  3. Oct 23, 2010 at 6:53 PM
    #23
    Thucker

    Thucker Well-Known Member

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    I still don't get why anybody would use 4WD in the rain. If you think you need to use 4WD to drive your truck in the rain. How do you think all the RWD cars and such drive around in the rain?
     
  4. Oct 23, 2010 at 7:40 PM
    #24
    OffroadToy

    OffroadToy old, forgetful, and decomposing

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    It's hard to believe the service tech and manager didn't have a clue.:eek:
    I don't even make sharp turns while in 4WD offroading. I plan turns ahead of time and make a wider turn than normal. If it's a tight spot I either back up and go forward a few times gradually or get back into 2WD to keep from binding up.
     
  5. Oct 24, 2010 at 4:12 AM
    #25
    Janster

    Janster Old & Forgetful

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    Like I've personally mentioned in other threads....

    I will use it in a downpour on the highway - specifically to keep the 4WD system functional and working. As it recommends in the owners manual to use it every so often (can't remember exact numbers - maybe once a month?)

    I have other theories why...but I won't mention them because people ALWAYS think I'm retarded. And I might be retarded, but this is my world and those people aren't living in it. :D All I can say is, you're better safe than sorry.
     
  6. Jan 28, 2011 at 6:04 PM
    #26
    NJPiney

    NJPiney New Member

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    First time poster.

    New Taco owner and also new to 4WD.

    Thanks everyone for saving me a trip to the dealer!
     
  7. Jan 28, 2011 at 6:07 PM
    #27
    Dark Knight

    Dark Knight Well-Known Member

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    A few bolts are different.
    Oh look! another one of these threads... :rolleyes:
     
  8. Jan 28, 2011 at 6:15 PM
    #28
    Dark Knight

    Dark Knight Well-Known Member

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    A few bolts are different.
  9. Jan 28, 2011 at 6:19 PM
    #29
    JLink

    JLink Well-Known Member

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    Yea.. as everyone has pointed out, NEVER use 4H or 4L on dry pavement. it is designed to be used ONLY on surfaces where you need it to maintain traction.

    i lived in colorado for a while, a ways west of co springs, a place where the roads are covered in snow for more than half the year, and I really only used 4x4 when I was in fresh snow or when I got stuck. Not saying there werent times that I probably SHOULD have used it and didnt, but definitely dont over use it. its not like an all wheel drive car thats meant to be driven on all road surfaces like that.
    Dont want to sound like a dick.. i hope i didnt.. just dont want you to mess up your truck.

    PS. Enjoy CO. I cant wait to move back, this time to denver.
     
  10. Jan 28, 2011 at 6:23 PM
    #30
    Dark Knight

    Dark Knight Well-Known Member

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    A few bolts are different.
    I love going by a dealer to try out cars. The sales guys are pitiful in most cases.
     
  11. Jan 28, 2011 at 6:32 PM
    #31
    jackrules

    jackrules Well-Known Member

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    check out some of the threads on here that explain the traction control, lockers, and 4wd. Everyone should know how to drive their car

    When i got mine, i didnt understand the diff between 4wd and all wheel drive...
     
  12. Jan 28, 2011 at 8:07 PM
    #32
    bjmoose

    bjmoose Bullwinkle J. Moose

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    Guys! It's an old thread that got bumped by a new guy who SEARCHED and found it useful. Stop replying to the OP.
     
  13. Jan 28, 2011 at 8:09 PM
    #33
    OZ-T

    OZ-T You are going backwards

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    OP , Bullwinkle no like you
     
  14. Nov 16, 2011 at 5:37 PM
    #34
    davegsc

    davegsc New Member

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    This thread has been useful, but could you guys clarify something for me? I noticed the same thing (rear wheels dragging when making a tight turn in H4. It's always the rear tire on the inside of the turn. Doesn't happen in H2), and I drive accordingly.

    However, I left it in H4 the other night, and when I started out of the driveway the next morning (gravel driveway, driving out forwards), the right rear wheel dragged until I noticed and put it back into H2.


    Note that I did a backing turn into the driveway last night, off of a dry, paved street.


    The service manager at Victoria Toyota said it's perfectly normal (of course :), and offered to let me test it on a 2012 (an attempt at up-selling? ;-)


    I understand the dry pavement/tight turn thing, but residual dragging the next day? Is this the same thing?
    Thanks


    Dave
    Salt Spring Island
     
  15. Nov 7, 2012 at 3:28 PM
    #35
    rokedawg

    rokedawg Active Member

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    So i was trying to make a right turn onto my street in h4. It's snowing quite bit so deffinitely is not "sticky pavement" as many previous posters seemed to reiterate. And my tires locked. Same thing happened as i tried to turn onto my driveway (covered in snow once again). So you all are saying this is normal? Or did i miss something in this thread?
    This is the first time i used the H4 so it kind of freaked me out...
     
  16. Nov 7, 2012 at 3:41 PM
    #36
    jivewalker

    jivewalker Well-Known Member

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    Damn, I just read this whole thread before I realized it was from 2010 :frusty:.
     
  17. Nov 7, 2012 at 4:54 PM
    #37
    rokedawg

    rokedawg Active Member

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    OK, I just learned about the lack of central differential and Drivetrain Binding. So basically, what I experienced is "as desgined" and I should be switching back to L2 when I have to make sharp turns, right? ...well unless I know for sure that the surface is slippery enough that the tires WILL slip. So i guess in my case, even though i was driving on snow, the tires were not slipping. Did i get this right?
     
  18. Nov 7, 2012 at 4:56 PM
    #38
    BradyT88

    BradyT88 Well-Known Member

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    define locked up? Like just for a second or for quite a while?

    4wd basically locks one front tire and one rear tire together so they have to rotate at the same speed. Well when you turn the front end follows a different path than the rear and since the tires are locked together one must travel faster than it should or slower to compensate thus causing the slipping.

    If it was just for a second (or for the duration of the turn) then it was likely normal and is nothing to worry about.
     
  19. Nov 7, 2012 at 4:59 PM
    #39
    BradyT88

    BradyT88 Well-Known Member

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    Yep. One thing I will mention is 4wd only helps you take off from a stop on snow covered roads. If you are using 4wd while driving around it is actually more likely to cause you to lose control because the tires have to slip here and there to maintain the same rate of rotation. So you will be periodically losing traction that you wouldn't normally lose while in 2wd.
     
  20. Nov 7, 2012 at 5:16 PM
    #40
    rokedawg

    rokedawg Active Member

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    Thanks Brady. Yeah, the more I read on this subject the more I think it was the binding. Just wondering though, how much angle I can get away with turning in H4 without putting undue stress on the system? Theoretically, any angle will cause the axles to turn at different speed so I shouldn't make ANY turns in H4 if the tires are gripping right? I ask because there is this steep hill with a bend that I have to go down coming home from my son's day care. If it is snowing, I want to be sure that I don't lose traction.
     

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