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3rd Gen Poll: Rear End Noise howling when feathering throttle

Discussion in '3rd Gen. Tacomas (2016+)' started by smitty99, Jul 21, 2016.

?

Does your rear end make a slight howling noise at 50-65mph when feathering throttle?

  1. Yes

  2. No

  3. Have not checked it yet but will report back

Results are only viewable after voting.
  1. Jan 9, 2019 at 4:37 PM
    #5001
    NMTrailRider

    NMTrailRider Well-Known Member

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    I simply can not believe they're still sending out trucks that have this problem. And are still giving people the run around.
     
    The Real Moondog likes this.
  2. Jan 9, 2019 at 4:38 PM
    #5002
    NMTrailRider

    NMTrailRider Well-Known Member

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    Could someone with a 2019 OR post up a pick of their cab mounts?
     
  3. Jan 9, 2019 at 4:39 PM
    #5003
    NMTrailRider

    NMTrailRider Well-Known Member

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    For what it's worth, when I took my 2018 in for the tsb they told me it didn't include the sound dampener in the cab because mine came from the factory with it already done.

    Whether or not that was true, who knows.
     
  4. Jan 9, 2019 at 4:54 PM
    #5004
    trazerr

    trazerr Well-Known Member

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    Ah, guess that could be possible! The sound dampening foam for the cab is a joke though. Thin piece of foam in the c pillars. I shoved a lot more foam in there when I did mine ha
     
    The Real Moondog likes this.
  5. Jan 9, 2019 at 5:31 PM
    #5005
    Azza

    Azza This is a custom title

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    I can hear a noise when I open my rear sliding window and am driving at a steady speed. Sounds like a whistling type sound. It can be pretty annoying. Is this what you are all talking about? I'm assuming yes. I wonder what causes it?

    I haven't brought this to the attention of the dealership where I purchased the vehicle from, and after reading a few posts here it sounds like a waste of time.
     
  6. Jan 9, 2019 at 5:46 PM
    #5006
    shakerhood

    shakerhood Well-Known Member

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    Not a whistle sound, it is more like a resonance tone.
     
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  7. Jan 9, 2019 at 6:03 PM
    #5007
    trazerr

    trazerr Well-Known Member

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    You’d know if you had the diff howl lol it would probably be harder to hear with the back window down. I know with the other windows down it can drown it out quite a bit. The sound gets transferred into the back of the cab via the cab mounts.
     
  8. Jan 9, 2019 at 7:43 PM
    #5008
    NMTrailRider

    NMTrailRider Well-Known Member

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    I told them even if the TSB called for it- I didn't want it put in. I knew that had nothing to do with the howl and I didn't want all the interior plastics removed and re-installed and then have rattles in addition to the howl.
     
    trazerr likes this.
  9. Jan 17, 2019 at 7:09 PM
    #5009
    Handoverfist

    Handoverfist Well-Known Member

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    Have the dealer look into TSB 0013-18-NOISY....
     
  10. Jan 17, 2019 at 7:10 PM
    #5010
    Handoverfist

    Handoverfist Well-Known Member

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    Have your dealer look into TSB 0013-18-NOISY....
     
  11. Jan 19, 2019 at 6:30 PM
    #5011
    Onehugenut55

    Onehugenut55 Well-Known Member

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    I brought my truck in for the 15k maintenance and let them know about the diff howling. They reproduced it and without any hastle, ordered what’s needed for TSB 0013-18-Noisy. I have a 17’ OR DCLB. I’ll sift through the thread but is there anything I should know before going through with it?
     
  12. Jan 19, 2019 at 6:34 PM
    #5012
    The Real Moondog

    The Real Moondog Well-Known Member

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    The main thing is that the TSB is only masking a noise. Your noise may simply be a resonance only, or not. My noise was a bad rear differential. Also, the TSB may or may not mask it enough to make you happy so be prepared to stay focused on getting a fix that you can live with. Best of luck to you.
     
    Onehugenut55, trazerr and shakerhood like this.
  13. Jan 19, 2019 at 6:44 PM
    #5013
    Jowett

    Jowett Well-Known Member

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    I have a 2019 DCSB 6MT, have the noise, no dampers on the rear cab mounts.
     
    trazerr likes this.
  14. Jan 19, 2019 at 8:32 PM
    #5014
    The Real Moondog

    The Real Moondog Well-Known Member

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    I thought I’d post an update since my rear differential was replaced with the help of Toyota corporate master techs and engineers. My rear differential is still silent after about 600 miles. My first rear differential when the truck was new was silent until about 1000 miles. While I’m hopeful, I probably won’t breathe easily until another 500 or so miles but I do realize that some have said their howl started even later. But, I’m done worrying about it. I do have a vibration after the diff replacement that corporate is looking into but I’m confident they’ll fix it. Corporate has treated me very well and gone above and beyond - I’m happy and impressed. I FINALLY plan to mount up my Ray 10s and Wilpeaks in the coming week and it’s time to enjoy my truck. Peace.
     
  15. Jan 28, 2019 at 3:52 PM
    #5015
    Abjamison

    Abjamison Active Member

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    So I've had this problem in my 18 TRD Sport since about 1k miles in. Usually happens when going up hills 4th-6th gears or towing in 4th. The whine/howl seems to be coming from the rear diff... I mean, every single trip to and from work I would hear it at least 3 times. I noticed every time as this particular sound irritates the shit out of me.

    However, and I can't see how this has a damn thing to do with a diff howl, I filled up with high octane 2 weeks ago and just noticed that the sound is now absent completely. Haven't heard it in 2 solid weeks. I'm paying closer attention now and it's quiet. I suspect I'll try low octance again and see if it returns, then go back to the expensive stuff and see what happens. Got my head scratching over this one....
     
  16. Jan 28, 2019 at 3:58 PM
    #5016
    trazerr

    trazerr Well-Known Member

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    Hmm doubt you have the diff howl. It howls when lightly feathering the throttle and/or when completely off the throttle. Worse when going down a hill off the throttle. If yours is making some noise when on the throttle going up hill then I would say it’s not the dreaded rear diff howl.
     
    Abjamison likes this.
  17. Jan 28, 2019 at 4:03 PM
    #5017
    Abjamison

    Abjamison Active Member

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    Very well might be something different, but it sounds like it's coming from behind me in the cab. But I see no way diff gas would affect that at all. So it's got to be something else.
     
  18. Jan 29, 2019 at 11:39 AM
    #5018
    NJTaco08088

    NJTaco08088 Well-Known Member

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    My rear diff was replaced because of the howl. The new rear diff is slighly quieter and only howls above 50 degrees farenheit.
     
  19. Jan 29, 2019 at 12:22 PM
    #5019
    WOTaco

    WOTaco Well-Known Member

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    That's funny because mine was addressed under the TSB and it was much better until it got cold out.
     
  20. Jan 29, 2019 at 12:26 PM
    #5020
    trazerr

    trazerr Well-Known Member

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    I’m in the howls louder when it’s warmer camp ha Last week it got above 50 and I heard it over a 10mph range. Never had it in that wide of range before.

    In the morning around or below freezing I can’t get it to howl. If I go on a long trip in the cold it will start howling. I think the metal just has to heat up to the right temp to transfer it into the cab better. YMMV

    Also, shop foreman wants the FTS who originally drove my truck to drive it again. He said it still probably wouldn’t get Toyota to do anything, but the more us SR5 guys complain the better the chance a real fix comes out. Probably a waste of time but I’ll do it for the greater good ha
     
    TD90S likes this.

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