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NEW TSB, Whine Noise From Rear of Vehicle

Discussion in '3rd Gen. Tacomas (2016+)' started by Murrayb4, Feb 7, 2018.

  1. Feb 7, 2018 at 10:00 AM
    #1
    Murrayb4

    Murrayb4 [OP] Internet Toyota Tech

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    Its not just the driver!

    looks like i'll be doing a bunch of leaf springs again.
    i wonder if my parts manager will order the OR springs for my sport.

    TSB pdf attached.
     

    Attached Files:

    Zip250, K-Bear, Bastek and 7 others like this.
  2. Feb 7, 2018 at 10:01 AM
    #2
    Murrayb4

    Murrayb4 [OP] Internet Toyota Tech

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    damn, should have searched first... its already in the thread regarding this noise
     
  3. Feb 7, 2018 at 12:08 PM
    #3
    Critical05

    Critical05 Well-Known Member

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    Yeah but it was only a image of the 1st page. You actually provided the entire TSB.

    Looks like no new springs for us DCLB.
     
  4. Feb 7, 2018 at 12:51 PM
    #4
    NJTaco08088

    NJTaco08088 Well-Known Member

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    Doesn't include the sr5's,
     
  5. Feb 7, 2018 at 1:00 PM
    #5
    trazerr

    trazerr Well-Known Member

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    Nor access cabs and any 2018's. I am hoping this is just the first wave of the TSB. I imagine they wouldn't want to recall every model at once. Start with the most popular models and move on down the list.:fingerscrossed:
     
    MOC221_ likes this.
  6. Feb 7, 2018 at 1:25 PM
    #6
    The Real Moondog

    The Real Moondog Well-Known Member

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    Thank you for posting this. There is hope for us OCD/noise sensitive Taco owners after all. :)
     
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  7. Feb 7, 2018 at 1:32 PM
    #7
    MOC221_

    MOC221_ Well-Known Member

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    Yeah, I hope you're right. Access cab here and whining like crazy :mad:
     
  8. Feb 7, 2018 at 2:13 PM
    #8
    Masterofnone

    Masterofnone 140.85

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    What is a TSB? Is it a mandatory recall?
     
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  9. Feb 7, 2018 at 2:15 PM
    #9
    MOC221_

    MOC221_ Well-Known Member

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    Technical Service Bulletin.

    You have to take your truck in and prove you have the problem, basically.

    If you don't do it before your warranty is up, or the dealer can't reproduce the symptom.. well ur facked.
     
    JaCado, shakerhood and Masterofnone like this.
  10. Feb 7, 2018 at 2:46 PM
    #10
    LilTexan22

    LilTexan22 Do you even Tacoma World?

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    Wait so let me get this straight. They have a new fix for it now that just released?
     
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  11. Feb 7, 2018 at 2:48 PM
    #11
    MOC221_

    MOC221_ Well-Known Member

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    Fix might be the wrong term, but if it deadens the whine and nothing grenades down the road.. all good. It's for specific trucks though..
     
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  12. Feb 7, 2018 at 2:50 PM
    #12
    LilTexan22

    LilTexan22 Do you even Tacoma World?

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    Do you know why its only for specific models and not sr, sr5's, etc?
     
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  13. Feb 7, 2018 at 2:57 PM
    #13
    MOC221_

    MOC221_ Well-Known Member

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    "Some 2016 – 2017 model year Tacoma Double Cab 4WD vehicles equipped with a BD22 rear differential may exhibit a whine type noise from the rear of the vehicle. This condition may occur while driving around 50 mph at constant speed, slight acceleration, or slight deceleration and may be caused by rear differential vibration transferring through the chassis and body. Follow the Repair Procedure in this bulletin to address this condition."

    What all the horseshit in that document boils down to is this:

    That BD22 axle I believe is the 8.75" rear diff found in ORs (ALL), PROs (ALL), and also M/T trucks that are not OR/PRO. You cannot get an SR5 in M/T, but the SR you can (not the '18 though).
     
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  14. Feb 7, 2018 at 2:59 PM
    #14
    Critical05

    Critical05 Well-Known Member

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    It's only for double cab with 8.75 rear end. The "all other except TRD pro, manual transmission" is where the sport, sr, and sr5 comes in. Those in manual transmission have the 8.75" rear end. OR and Pro automatics have 8.75" rearend, all other automatics have the smaller 8".
     
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  15. Feb 7, 2018 at 3:01 PM
    #15
    bshammer0

    bshammer0 Well-Known Member

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    Mine doesn't do this frequently but when it does it does drive my OCD bonkers and of course haven't been able to produce at the dealership... Hopefully I'll be able to reproduce it for the dealer in the next 10k miles so I can get this done for free vs. it becoming a more frequent problem later I have to either pay to get fixed or live with.
     
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  16. Feb 7, 2018 at 3:05 PM
    #16
    OnHartung'sRoad

    OnHartung'sRoad -So glad I didn't take the other...

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  17. Feb 7, 2018 at 3:09 PM
    #17
    MOC221_

    MOC221_ Well-Known Member

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    Something that helps mask/deaden/block the whine I guess. They're treating the symptom and not the cause IMO..
     
  18. Feb 10, 2018 at 6:00 PM
    #18
    TacoWave

    TacoWave Well-Known Member

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    Maybe I’m missing something here, but what do the leaf springs have to do with the diff whine? It’s like replacing engine mounts to fix a cylinder knock.
     
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  19. Feb 10, 2018 at 6:09 PM
    #19
    shakerhood

    shakerhood Well-Known Member

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    But the SR Manual would have only been in Access Cab Configuration
     
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  20. Feb 10, 2018 at 6:14 PM
    #20
    hiPSI

    hiPSI Laminar Flow

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    The leaf springs are the component that is conducting the resonance. Any time you have rotating gearing there is going to be noise and vibration. In this case other components are amplifying the slight sound.
     
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