1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Whistle in 4WD?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Kyitty, Sep 3, 2018.

  1. Sep 3, 2018 at 7:49 PM
    #1
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    This weekend I put the truck into 4WD, rolled the windows down, and cruised down a dirt road. While driving I noticed a really loud steady whistle. At first I though I had gotten a rock stuck in a brake caliper or something. It didn't go away. Stopped and drove in reverse a couple times in case I had a brake drum stuck or something.

    Ultimately I determined that the whistle is ONLY present while in 4WD. The instant 2WD engages the whistle stops. If I put it back into 4WD the whistle begins within 2-3 seconds and won't stop while the truck is moving unless I drop back to 2WD.

    Reaching out to my Toyota dealer since the truck is still under 60k miles. Curious if anyone has experience this or has ideas on what should be checked out.

    Front Diff had fluid change at 30k miles. Truck is now at 46k miles. Transfer case is probably due for refill though (still factory fluids).
     
  2. Sep 4, 2018 at 6:11 AM
    #2
    Taylorbarton1

    Taylorbarton1 Well-Known Member

    Joined:
    May 28, 2018
    Member:
    #254716
    Messages:
    302
    Gender:
    Male
    First Name:
    Taylor
    Hotlanta
    Vehicle:
    2011 TRD off-road
    6 inch lift. 35's.
    How fast were you going?
     
  3. Sep 4, 2018 at 6:30 AM
    #3
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    20mph at the most.
     
  4. Sep 4, 2018 at 4:36 PM
    #4
    desertrunner24

    desertrunner24 Well-Known Member

    Joined:
    Oct 30, 2016
    Member:
    #201101
    Messages:
    3,954
    Gender:
    Male
    First Name:
    Jake
    Fresno , CA
    Vehicle:
    2011 TRD offroad 4x4
    Some
    Could it be the add actuator? Are you able to hear it while in park and still in 4wd?
     
  5. Sep 4, 2018 at 4:45 PM
    #5
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    Only whistles while in motion.
     
  6. Sep 4, 2018 at 6:45 PM
    #6
    Alexely999

    Alexely999 Well-Known Member

    Joined:
    Jan 17, 2016
    Member:
    #175203
    Messages:
    2,157
    Gender:
    Male
    First Name:
    Alex
    Bay Area, CA
    Vehicle:
    2015 DCSB 4X4
    It’s the ladies whistling as you go by.
     
    Sugar Silva likes this.
  7. Sep 4, 2018 at 7:00 PM
    #7
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    Ha! Doubt it.

    Taking it to Toyota tomorrow...
     
    Alexely999 likes this.
  8. Sep 5, 2018 at 3:02 PM
    #8
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    Of course... Toyota says they cannot replicate the whistling noise...

    Figures. Whistled like a S.O.A.B. this weekend.
     
  9. Jul 5, 2019 at 2:36 PM
    #9
    WestyTacos

    WestyTacos New Member

    Joined:
    Jul 5, 2019
    Member:
    #298386
    Messages:
    3
    Gender:
    Male
    Did you ever get to the bottom of the whistling? I just checked out a used 2014 4x4 today with 96k that seemed to have the exact same noise you’ve described.
     
  10. Jul 6, 2019 at 12:22 PM
    #10
    Kyitty

    Kyitty [OP] Mr. Beard

    Joined:
    Feb 20, 2015
    Member:
    #149179
    Messages:
    9,586
    Gender:
    Male
    Bozeman, MT
    Vehicle:
    2015 Tacoma DCLB Better Than TRD
    See Build Page
    It went away on its own. I think maybe something got struck in the brake caliper or something. Really not sure.
     
  11. Jul 23, 2021 at 9:11 PM
    #11
    rolot2

    rolot2 Well-Known Member

    Joined:
    Nov 9, 2019
    Member:
    #310297
    Messages:
    349
    Gender:
    Male
    First Name:
    Rolando
    Denver, CO
    Vehicle:
    2015 TRD OR DCSB
    Front: Extended Travel 2.5” King coilovers with/adjusters (Set at 3” lift) Rear: 2.0” King shocks with adjusters Icon RXT (Option 2) Pack Toyota TRD Cat-back exhaust AnytimeBackup Camera Anytime Front/Rear Camera RCI Sliders KB Voodoo Bed Rack Center Console Ram Mount
    Anyone have any insight? Been trying to diagnose this issue on my truck

    68D04BA3-4371-423A-BCEF-4D4A1EDEF67C.jpg
     
  12. Jul 24, 2021 at 12:23 AM
    #12
    risethewake

    risethewake Well-Known Member

    Joined:
    Nov 15, 2018
    Member:
    #272780
    Messages:
    415
    Gender:
    Male
    First Name:
    Will
    Vehicle:
    '15 MGM Sport AC
    Basics. Tires, painted headlighes, UHLM, baby winch in the bed, and heated mirrors :)

Products Discussed in

To Top