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Vibrations/Rattles in 2020 Premium Supra

Discussion in 'Issues, Warranty, Recalls, TSB' started by KeshyMKV, Sep 3, 2019.

  1. tadda

    tadda Well-Known Member

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    #106 Jul 24, 2020
    Last edited: Jul 24, 2020
    This very issue just started up for me as well....

    Only at idle, at a very narrow rpm range (600~650 rpm), I get this faint tapping / drumming finger noise which sounds like its coming from somewhere in the front center dash area between the steering wheel and center vent ...If I tap the accelerator lightly to get above ~700rpm rpm it disappears...need to track down the source...

    Anyone had any luck locating the cause / source?
     
  2. Grendel-13

    Grendel-13 Active Member

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    I think its the plastic covering above the brake and gas pedals. It is held in place by plastic knobs that turn (I'm sure there is a specific name for them I just don't know it.) It is a little bit loose and will rattle against the metal underneath it. I put some stick on felt in the one spot in between the plastic and the metal. The noise is gone. I found out what was causing it accidently. I was sitting at stop light, and the noise got annoying, so I pressed my left leg against the plastic and the noise stopped. I can try to get a picture if it is needed.
     
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  3. ALEXVOSS123

    ALEXVOSS123 Active Member

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    I have a similar issue when at idle and the car is stopped I can hear a little whine sound coming from the front but when you drive it you don't hear it is that the same issue that you have?
     
  4. tadda

    tadda Well-Known Member

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    #109 Jul 27, 2020
    Last edited: Jul 27, 2020
    Still not having any luck hunting down the source of this soft tapping sound which seems to occur in the front cabin in the area between the steering wheel, center console, an above the accelerator pedal area ...There is definitely something lightly tapping against a panel ...This only occurs during initial cold startup and at a very narrow rpm range (600~650 rpm) ....Once I take it out for a short drive and return and park I can no longer replicate the tapping sound again at any low idle range...

    I tried removing the plastic top cover under the drivers side footwell above the pedals and that did nothing to eliminate the soft tapping...

    Any suggestions?

    It sounds exactly like this video posted below

     
  5. Grendel-13

    Grendel-13 Active Member

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    Mine was more of a rattle.
     
  6. OP
    OP
    KeshyMKV

    KeshyMKV Well-Known Member

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    Would you mind posting a picture of the general area that you fixed?

    Thanks,
    -V
     
  7. tadda

    tadda Well-Known Member

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    #112 Jul 28, 2020
    Last edited: Jul 28, 2020
    I tried removing the plastic top cover under the drivers side footwell above the pedals and unfortunately it did nothing to eliminate the soft tapping that I'm experiencing...

    panel removal tapping noise.jpg

    There is definitely something lightly tapping against a panel somewhere else...This only occurs during initial startup and at a very narrow rpm range (600~650 rpm) ....Once I take it out for a short drive and return and park I can no longer replicate the tapping sound again at any low idle range...

    I'll keep searching...
     
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  8. digicidal

    digicidal Well-Known Member

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    In my case it's almost always the opposite - being that it usually occurs at the end of a spirited drive (and almost exclusively when driving in sport mode on rougher stretches of pavement). I have noticed it a couple of times early on, but usually it's after 15-20 minutes of driving.

    It seems almost the entire dash area could stand to have a bit more insulation or at least better tethering of harnesses, panel reinforcement, etc. But then again I'm sure if all of that, and more, would have been done to completely eliminate rattles and noise... then we'd all be bitching about how heavy the car was. :p
     
  9. Grendel-13

    Grendel-13 Active Member

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    Here's the pic, the blue stuff in the red circle is what it put in place and it stopped the noisesupraunderdash.jpg
     
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  10. ZtoSupra

    ZtoSupra Member

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    How on earth were you able to slide that in there? There’s no room to work! Seems to need one on each side of the apparatus, & the the inserts need to be placed near the bottom. When I try to insert with a tweezer, my knuckles are in the way.
     
  11. puzzled

    puzzled Well-Known Member

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    I used a pair of long nose pliers.
     
  12. ZtoSupra

    ZtoSupra Member

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    Ah, ok. Thanks!
     
  13. tadda

    tadda Well-Known Member

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    I forgot to post this here in this thread...

    I had the door panels off a few months ago working on the speakers and while they were off I applied a 1/4" adhesive backed foam pad under the door lock plunger rod area (shown below)...The helped to stabilize the door lock plunger rod and fixed the rattle issue...

     
  14. OP
    OP
    KeshyMKV

    KeshyMKV Well-Known Member

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    OH MY GODDDD...thank you!

    This rattle is the most annoying thing that I havent gotten rid of for a year now haha.

    Thanks for the photo, I will have to take some time this weekend and try that out.

    Cheers,
    -V
     
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  15. tadda

    tadda Well-Known Member

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    FYI...

    Within this video below they show in detail how to remove the door panel....

     

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