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4x4 noise-help

Discussion in 'Technical Chat' started by tClay07, Jan 19, 2014.

  1. Jan 19, 2014 at 2:01 PM
    #1
    tClay07

    tClay07 [OP] Member

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    Tyler
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    So when I engage my truck into four wheel drive, everything is fine and it goes into gear smoothly, but when I push the button o take it out of four wheel drive it not only takes a little while (10 seconds or so) but it makes a loud, hard clank and I can feel a jerk. Does anyone know why this can be and how I can fix it?

    Ps. I just changed my transfer case oil and am goin to do the front diff today.

    Thanks,Tyler
     
  2. Jan 19, 2014 at 2:03 PM
    #2
    bellassaiw10

    bellassaiw10 Formally afroman5015

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    If it sounds fine when its engaged I wouldn't worry about it, my locker makes a good clank when it i disengage it but as long as its not noisy during use I wouldn't worry
     
  3. Jan 19, 2014 at 5:54 PM
    #3
    snowytop77

    snowytop77 Member

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    Mine does the same exact thing and continues to get worse over time. I know my problem isn't the locker, because I don't have a locker...no TRD :(. At first (a couple years ago or so) it only happened occasionally and it was much softer and not as loud, but now it happens almost every time I disengage the 4WD. It has become very loud and sends a jolt through the vehicle that feels much like hitting a good sized pot-hole! I've tried disengaging it in configurations such as: in-gear, in-neutral at freeway speeds, slow speeds and also completely stopped and it still does it. It is also really hard to tell where the noise and jolt is coming from, but is definitely from the cab forward. Based on my experience driving 4WDs (my whole driving career) I would say there is something definitely bad going on here. I would like to fix this on my own, so if someone here has any suggestions to trouble-shoot this I sure would appreciate your help. For now I'm not using my 4WD...please help! Thanks
     
  4. Jan 23, 2014 at 11:32 AM
    #4
    devil1

    devil1 Well-Known Member

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    When was the last time you changed the fluid in the transfer case? My 2013 did this after I went through some really deep water and when I checked the transfer case oil there was water in it. I changed it and used synthetic gear oil and it doesnt make any noise at all when going in and out of 4wd.
     
  5. Jan 25, 2014 at 9:53 AM
    #5
    snowytop77

    snowytop77 Member

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    I must admit I've only checked the level once, but it was where it should be at that time. I'll take another look and maybe change it to synthetic?
    Thanks for the reply...I've been surprised that I haven't got more on this issue. Should this be posted somewhere else?
     
  6. Jan 25, 2014 at 11:27 AM
    #6
    Janster

    Janster Old & Forgetful

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    What are you doing when you're disengaging?

    If there is any 'torque' against the driveline - it will have a harder time engaing & disengaging.

    If your wheels are turned.... If you're on a hill..... If you're driving and on the gas..... can make it harder to engage or disengage.

    You wanna be on a flat surface, not turning, and/or not applying the gas when driving.
     
  7. Jan 25, 2014 at 2:30 PM
    #7
    TherealScuba

    TherealScuba Well-Known Member

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    This.
    Get on a flat surface. Drive straight 10-15 feet to remove any bind that might be in the driveline. Then dis-engage 4wd.
     
  8. Jan 25, 2014 at 5:33 PM
    #8
    snowytop77

    snowytop77 Member

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    Thanks for the replies. I've tried it in every possible situation I can think of. Even stopped, in neutral just idling and it still makes the popping sound and sends a jolt through the vehicle, although not as loud or violent as when moving. It is noticeably louder when turned at nearly full-lock.

    I once had a pinion shaft snap in-two on a jeep xj, the sound it made sounds a lot like what the taco has going on. So it has me a bit worried!

    With the trans in neutral I crawled under it today and grabbed the driveline directly behind the transfer case and twisted back n forth, while doing this there is a dinging sound inside the case (like a bell would make). Not sure if that's normal?

    Thanks for your help!
     
  9. Jan 25, 2014 at 6:17 PM
    #9
    TherealScuba

    TherealScuba Well-Known Member

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    The bell sound you are describing sounds like the driveshaft.
    Grease it and try again.
    It's fairly normal.
     
  10. Jan 25, 2014 at 6:27 PM
    #10
    Ahshiet

    Ahshiet Well-Known Member

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    Maybe driveline is under torque when disengaging???? Steering straight?? Made that up in my head but notice if I'm on an angle and in a tight area with the wheel turned and on the brakes it makes more noise I usually try to find a straight flat area to disengage the 4x4
     
  11. Jan 25, 2014 at 6:59 PM
    #11
    snowytop77

    snowytop77 Member

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    Everything is recently greased and I just checked the level of the transfer case, it's full and clean. The bell noise is definitely inside the case. Are these transfer cases chain driven? I could be hearing a chain clanking against something.

    I had my wife engage the 4WD (push the button) and disengage (key in the on position, engine off) it while I was underneath the t-case, I could hear the motor (I assume electric) engage and disengage. It took a bit longer to disengage and sounded a little different. This is likely nothing, but I'm not sure what it is suppose to sound like?
     
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