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Investigation: "new" engine sound

Discussion in 'General Tundra Discussion' started by Spvrtan, Apr 13, 2017.

  1. Apr 13, 2017 at 11:55 AM
    #1
    Spvrtan

    Spvrtan [OP] Amateur fabricator

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    Kris
    San Diego, CA
    Vehicle:
    Black '14 CM SR5 w/ SC; 40s on 17s; 5.29s
    So I fixed my initial problem a few days ago after waiting to fix it for weeks (actually a few months due to being busy with other things) where my engine was giving off a high-pitched squeal:
    https://www.tundras.com/threads/engine-whine-especially-when-revving-up-low-voltage-meter.9960/
    ..the problem was a bad supercharger idler pulley bearing.

    Now, I'm onto the next sound, which I honestly don't remember being there or not before the squeal started. It only happens when I shut off the engine. Here's a video of what it sounds like..

    https://www.youtube.com/watch?v=j0yEQtJUffU&feature=youtu.be

    Again, the sound isn't audible with the engine running and the hood popped.
     
  2. Apr 13, 2017 at 12:20 PM
    #2
    Bear

    Bear Fargin' Iceholes

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    2016 Tundra TRD OffRoad
    PC 6" Stage II; Fuel Beast 18x9 +1mm...lights n stuff
    Sounds like the fan clutch or bearings bud
     
  3. Apr 13, 2017 at 12:22 PM
    #3
    csuviper

    csuviper Moderator Staff Member

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    Brian
    Broomfield, CO
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    2019 TRD Sport CM 5.7L 4X4
    Some Mods :) See build thread for details
    Air pumps or something like that. Maybe fan clutch. Not really sure. Happens on mine too.
     
  4. Apr 13, 2017 at 12:28 PM
    #4
    Bear

    Bear Fargin' Iceholes

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    2016 Tundra TRD OffRoad
    PC 6" Stage II; Fuel Beast 18x9 +1mm...lights n stuff
    I'm leaning fan clutch assembly/bearings...only because that thing still spins pretty good (3-4 seconds)after engine shut down
     
  5. Apr 13, 2017 at 12:44 PM
    #5
    VA10

    VA10 New Member

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    Virginia
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    2020 Tundra Limited TRD Off-Road
    Mine has been doing that since I drove off the lot.
     
  6. Apr 13, 2017 at 3:21 PM
    #6
    T-Rex266

    T-Rex266 Independentoffroad who? That's cute. Staff Member

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    Normal
    Every Tacoma will do that too.
     
  7. Apr 13, 2017 at 5:45 PM
    #7
    040Tundra

    040Tundra Teddy 2013-2019

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    Aaron
    Las Vegas, NV
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    040 '16 CM LTD 4x4
    A little of this and a little of that.
    Mine does the exact same thing. Normal.
     
  8. Apr 13, 2017 at 7:58 PM
    #8
    Wynnded

    Wynnded What MPG...

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    2011 RCSB S/C'd 5.7L AWD Tundra
    OEM Upgrades: TRD PRO BBS Wheels TRD S/C, OVTune and +2 psi pulley TRD Rear Sway Bar Fox TRD Pro Shocks Limited mirrors (auto darkening/backup camera/power fold/puddle lights) Limited Grill Mod Automatic Climate Controls Mod Automatic Headlamp Mod Sequoia Front Sway Bar Mod Sequoia Transfer Case Mod Sequoia Leather Steering Wheel Mod Sequoia Limited Gage Cluster Mod Sequoia LED Headlamp Upgrade Window Tint Fake Manual Transmission Mod 10" BAMufflers Stainless Catback Engine Block Heater Illuminated Ignition Key Ring Mod Deck Rail System w/cleats
    Mine doesn't do that....but my secondary air injection pumps have been disabled. I suspect that's what you're all hearing. See if you can localize it in the front passenger fender.
     
  9. Apr 14, 2017 at 10:25 AM
    #9
    JH5370

    JH5370 Member

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    Josh
    Eastern WA
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    2017 White DC TRD PRO
    Mine makes this noise and it only has 400 miles on it. My wife's 4Runner also has made this noise since new.
     

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