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4wd function

Discussion in '2nd Gen. Tacomas (2005-2015)' started by sean266, Dec 23, 2011.

  1. Dec 23, 2011 at 10:38 AM
    #1
    sean266

    sean266 [OP] #ThinBlueLine Moderator

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    Why Is it when I flip it to 4H (foot off accelerator) it'll engage by showing it on the dash, but other times I have to tap the accelerator again for it to lock into 4H?
     
  2. Dec 23, 2011 at 11:29 AM
    #2
    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    Sometimes things aren't lined up perfectly when you hit the switch. Pressing the accelerator, in some circumstances, will take the pressure off the ADD components and allow it to lock into 4WD. Same reason that when you're stopped, if you go from 2Hi to 4Hi, it doesn't always engage.
     
  3. Dec 23, 2011 at 11:48 AM
    #3
    deadhed61

    deadhed61 :notsure:

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    At the Dealer I was told you are able to go from H2 to H4 on the fly, no need to let off the gas (under 60mph tho). They actually recommended giving it gas while changing over
     
  4. Dec 23, 2011 at 11:51 AM
    #4
    brp

    brp Well-Known Member

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    I find that if I am moving but not giving it gas, that works the best
    (2->4H).
    If I am on the accelerator when changing into 4H, I sometimes get a
    clunk, I figure that is not helping anything.
     
  5. Dec 23, 2011 at 11:52 AM
    #5
    kcbmx

    kcbmx doing my thing.

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    spit cup, weathertech floor mats, riffle rack, and bilsteins.
    x2
     
  6. Dec 23, 2011 at 11:56 AM
    #6
    sean266

    sean266 [OP] #ThinBlueLine Moderator

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    X2. Less force on the drive shaft correct?
     
  7. Dec 23, 2011 at 11:59 AM
    #7
    sean266

    sean266 [OP] #ThinBlueLine Moderator

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    If I know I'll be needing it right away I usually will place it in neutral, shift to 4H then into drive and go. Same with going back into 2wd.
     
  8. Dec 23, 2011 at 12:05 PM
    #8
    sean266

    sean266 [OP] #ThinBlueLine Moderator

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    So what I'm describing in my first post it completely normal then, correct?
     
  9. Dec 23, 2011 at 12:08 PM
    #9
    glwood6

    glwood6 Well-Known Member

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    I had to shift into 4 hi last night on an icy hill, and forgot to let off the accelerator...got a pretty good clunk out of that. I agree with no accelerator, it has to be better on the system...
     
  10. Dec 23, 2011 at 12:14 PM
    #10
    glwood6

    glwood6 Well-Known Member

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    Yeah, I had lost traction on an icy patch, and my brain froze just like the street, and I forgot to ease up before switching on 4wd...it did engage, with the aforementioned clunk, and got me up the hill...:eek:
     
  11. Dec 23, 2011 at 3:05 PM
    #11
    deadhed61

    deadhed61 :notsure:

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    I totally agree with everything about not shifting it while accelerating and was very hesitant, and to prove me wrong the guy at the dealership switched it over while I was accelerating onto the freeway going about 45mph. I didn't even feel it change over. Either way, I'm not agreeing with him or disagreeing with him, but in the future I will most likely take my foot off the pedal just to be safe.

    What's funny was that this guy at the dealer was their truck master, and that is why he went with me on the test drive. His title was "Toyota Truck Champion". He seemed to really know his stuff, and was a great guy!
     
  12. Dec 23, 2011 at 4:04 PM
    #12
    sean266

    sean266 [OP] #ThinBlueLine Moderator

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    More pressure on parts that don't need it. Take the 1/2 second to take the foot off and do it, IMO
     
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