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

"Thunk" disengaging 4Hi?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by jandrews, Jun 27, 2009.

  1. Jun 27, 2009 at 8:04 PM
    #1
    jandrews

    jandrews [OP] Carolina Alliance Southwest Region Ambassador

    Joined:
    Jun 7, 2009
    Member:
    #18122
    Messages:
    12,180
    Gender:
    Male
    Vehicle:
    '09 FourDubDee TRD OR
    A-TRUCK, Fat Kid in the Bed, Custom Pinstriping, Ported and Polished Muffler Bearing, Hi-Performance Bed Mat
    Hi all.

    Took the new Taco out on some dirt trails on my folk's property today to play a little in 4Hi. Truck did beautifully. When I got back to their gravel drive and switched back to 2Hi, I noticed an audible "thunk" from the front end of the tranny...is this normal? The dash icons seemed to indicate that everything went into and out of 4x4 normally (per the descriptions in the owner's manual). Nothing in the OM about a "clunk" when disengaging though.

    Before anyone asks:

    - No I have not been playing around in 4x4 on dry pavement/gravel.
    - Yes the vehicle was completely stopped and the shifter was in neutral. Yes, I know this isn't necessary for 4Hi, but happened to be stopped anyway, so why not?

    Thanks in advance. Performance in 2Hi seems fine. Don't think I killed anything in the driveline...
     
  2. Jun 27, 2009 at 8:27 PM
    #2
    jhodge83

    jhodge83 Any dog under 50# is a cat and cats are useless... Moderator

    Joined:
    Apr 27, 2007
    Member:
    #1432
    Messages:
    28,098
    Gender:
    Male
    First Name:
    Jamie
    Moncks Corner, SC
    Vehicle:
    09 Timberland Mica DC 4WD Sport
    wat?
    the thud is from it disengaging normally. mine has done it every time
     
  3. Jun 27, 2009 at 8:30 PM
    #3
    bigmooze

    bigmooze Well-Known Member

    Joined:
    Jan 10, 2009
    Member:
    #12437
    Messages:
    811
    Gender:
    Male
    First Name:
    Richard
    Belle River, ON
    Vehicle:
    2009 4x4 access cab SR5
    Bilstein 5100's all round (0" up front with stock springs), 265/75/16 Goodyear Wrangler Duratracs, K&N 63 Series Aircharger Kit, Flowmaster Super 44 Muffler, Delta Champion Toolbox, fog lights, back-up lights, Sirius satellite radio with PA15-TOY, Midland 1001z CB radio with 2' Firestik II antenna, Weathertech floor mats, AVS sill protectors, Marathon SuperHides Seatcovers (Universal Digital Camo), trimmed front mud flaps, Viair 20005 OBA, Warn W650D driving lights and W650F fog lights on N-Fab light bar, Hi-Lift X-treme jack with off road accessories, TracRac "TracONE" system
    I experienced the same thing a couple of weeks ago. I engaged and disengaged 4hi a few times in a row, and each time the clunk occurred. Just assumed it was Fine, after all it is a mechanical system. That said, when I had used 4hi this past winter I didn't really have the same issue.
     
  4. Jun 27, 2009 at 9:03 PM
    #4
    aaronk

    aaronk Well-Known Member

    Joined:
    Mar 9, 2008
    Member:
    #5180
    Messages:
    199
    Gender:
    Male
    Vehicle:
    2009 Dbl Cab V6 TRD
    Yup, normal. The clunk is worse if your wheels are turned when you disengage. I try to straighten my wheels before I disengage for this reason.
     
  5. Jun 27, 2009 at 9:10 PM
    #5
    SilverStreakUSMC

    SilverStreakUSMC Member

    Joined:
    Jun 17, 2009
    Member:
    #18570
    Messages:
    22
    Gender:
    Male
    Charlottesville, VA
    it happens randomly, but ive noticed it more if im either going TOO fast, or i try to take off too fast from neutral, when you shift back into gear, it will say that its off, but you need to ease it back into driving. but as far as i can tell its no damage. everythings normal.
     
  6. Jun 27, 2009 at 9:49 PM
    #6
    brian

    brian Another Traitor

    Joined:
    Apr 15, 2009
    Member:
    #16011
    Messages:
    7,557
    Gender:
    Male
    Elizabeth City, NC
    Vehicle:
    2008 F-350 Powerstroke
    never been able to avoid the clunk here, no matter what I do.
     
  7. Jun 28, 2009 at 2:08 AM
    #7
    Capita

    Capita Well-Known Member

    Joined:
    Jun 6, 2009
    Member:
    #18096
    Messages:
    2,673
    Gender:
    Male
    Corner Brook, Newfoundland, Canada
    Vehicle:
    09 TRD Sport Double Cab
    I been putting my truck in neutral and then taking off 4hi. It seemed to make the clunk very small and not noticable. I got this from Toyota Nation so I can't take credit. It does seem to help
     
  8. Jun 28, 2009 at 5:01 AM
    #8
    MattN03

    MattN03 Well-Known Member

    Joined:
    Jan 14, 2009
    Member:
    #12571
    Messages:
    716
    Gender:
    Male
    First Name:
    Matt
    Bluegrass State
    Vehicle:
    07 DC 4x4 TRD Off-Road
    20% window tint, beep mod, hardwired V1, TSB springs, AVS Bugshield-21803, USA Spec PA15, OEM Tacoma scuff plates, Weathertech mats, Truxedo LoPro, TRD skid, GY Duratrac's 265/75/16 C Range, locker mod (switch method)
    Mine does it too...
     
  9. Jun 28, 2009 at 5:09 AM
    #9
    Brunes

    Brunes abides.

    Joined:
    May 31, 2008
    Member:
    #7011
    Messages:
    17,641
    Gender:
    Male
    First Name:
    Rotorhead
    DC or New Jersey - Depends on the day....
    Vehicle:
    08 Red/Graphite and Satin Black
    Inside: Tint, Wet Okole 1/2 Piped Red/Black Covers, Black Weathertech Digital Fit Mats, URD Short Throw w/ TWM Weighted Knob, USA Spec iPod adapter. Outside: 4300K Retro w/ Angel Eyes and Red Shrouds, 5000K Blazer Fog Light Retrofit, Debadge, Bed Locking Handle, Satin Black Rims Performance: TRD/Steigmeier Blower w/ 2.7 Pulley. 668 Injectors and 320 LPH AEM Fuel pump. URD UCON and 7th Injector. DTLT Headers, URD Y-Pipe, Wicked Flow Muffler. Suspension: Both: OME Shocks Front: 886X's and TC UCAs Rear: Dakars Armor: Relentless Front Bumper Relentless High Clearance Rear w/ Tire/Rotopax Swing Out Relentless Front, Mid, and TCase skids BAMF Diff Skid Recovery and Spares: Fullsize Spare Tire 2x2 gal Rotopax 1x1 gal Rotopax 1x1 gal Water Rotopax Warn 9.5XP-S Winch Hi-Lift Extreme 60" Ironman Off-Road Recovery Kit
    It's no big deal...Gears meshing and un-meshing....As long as you follow the rules on the OM about speeds and stuff you'll be fine. As the gears get settled and wear into each other it may get quieter as well.
     
  10. Jun 29, 2009 at 1:13 PM
    #10
    brandob9

    brandob9 Well-Known Member

    Joined:
    Jun 26, 2009
    Member:
    #18937
    Messages:
    248
    Gender:
    Male
    First Name:
    Brandon
    Portland, OR
    Vehicle:
    09 DC Long Bed
    Soundproofed cab, beeps purged, bed lights, extra bed tie-downs and TSB springs.
    Sometimes mine does it, sometimes it doesn't. Given the amount of steel turning when it is using the front wheels, I'm calling it normal. :)
     
To Top