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Thump when I stop

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Mrgoody86, Apr 22, 2009.

  1. Apr 22, 2009 at 2:11 AM
    #1
    Mrgoody86

    Mrgoody86 [OP] Well-Known Member

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    on my 09 DBL cab LB I have noticed when I stop there is a noise and feeling in the rear end like the rear end is catching up and stopping kinda like when your hauling a trailer when you stop, it sounds more like a thump. I dont have anything done to my suspension yet. and was just wonder if any of you guys have heard of this or seen it for yourselves, maybe a rear brake thing????? just a wild guess though. Sorry if it doesnt make sense its really hard to explain.
     
  2. Apr 22, 2009 at 3:28 AM
    #2
    bigmooze

    bigmooze Well-Known Member

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    Take a look at post #9 here. I have experienced the same bump. I noticed that when my truck has weight in the back, it doesn't happen. Possibly something to do with less up/down movement and less movement in the driveshaft when the truck comes to a stop. Mine's an '09 access cab 4x4. That post may or may not help, but it is worth a look.
     
  3. Apr 22, 2009 at 3:57 AM
    #3
    WoadWunner

    WoadWunner Well-Known Member

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    My 09 DC 6MT is quiet.
     
  4. Apr 22, 2009 at 4:09 AM
    #4
    dalesrn

    dalesrn Tacoma TSS

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    Do you tow a trailer a lot?
     
  5. Apr 22, 2009 at 4:10 AM
    #5
    Mrgoody86

    Mrgoody86 [OP] Well-Known Member

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    never.....
     
  6. Apr 22, 2009 at 5:59 AM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Its axel wrap. Pretty common on our trucks with automatics.
     
  7. Apr 22, 2009 at 6:58 AM
    #7
    stormyday

    stormyday Well-Known Member

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    Could it be the fuel tank slosh?
     
  8. Apr 22, 2009 at 6:58 AM
    #8
    dalesrn

    dalesrn Tacoma TSS

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    I am not mechanically inclined, but am trying to learn. What is "axel wrap?"
     
  9. Apr 22, 2009 at 7:31 AM
    #9
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Axel wrap is the springs remaining "preloaded" after comming to a stop, due to the auto tranny sending power to the axel. Once at a stop, being as the brakes are applied, the rear axel is "stuck" in an pinion up position due to the torque. The springs twist a little bit under this torque. When the brakes are released, the axel returns to its normal position, resulting in a "Thump" sound. Many times it can be felt. This is amplified by the length and soft spring rate of the Tacoma rear springs. Some people have fixed this with liberal amounts of grease applied in the slip yolk of the drive shaft (I have not tried this myself, and Im not sure its a good idea), or the use of an AAL.
     
  10. Apr 22, 2009 at 7:34 AM
    #10
    dirthawker1313

    dirthawker1313 Well-Known Member

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    you might want to check and see if your getting a leak at where the driveshaft enters the transmission.. i have the same "bump or clunk" and i have had a leak at my transmission i feel is caused be that noise...IMHO
     
  11. Apr 22, 2009 at 7:36 AM
    #11
    OU812

    OU812 ban the term murdered out

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    yep

    And/or what he said :D
     
  12. Apr 22, 2009 at 7:45 AM
    #12
    JeffRock

    JeffRock Well-Known Member

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    I started hearing that noise after I had the Spring TSB done. I have a manual transmission.
     
  13. Apr 22, 2009 at 8:25 AM
    #13
    glennv

    glennv Well-Known Member

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    My Cherokee did this so I pulled the rear drive shaft and packed the yoke with anti seize . Solved the problem. I'm new to the Tacoma so I'm not sure of the drive shaft setup. If it does have a yoke I would try that.
     
  14. Apr 22, 2009 at 1:49 PM
    #14
    richard botello

    richard botello New Member

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    I'm having the same problem......I drive an '07 Prerunner Double Cab..... when I stop and release the brake it seems as though the transmission or rear brakes thump. Maybe the rear calipers? Any ideas?
     
  15. Apr 22, 2009 at 2:16 PM
    #15
    raskal311

    raskal311 Well-Known Member

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    Same here 07 prerunner double cab with TSB done in the rear. I get the same thump when I back up then move forward or take off from a stop. Not always it every now and then.
     
  16. Apr 22, 2009 at 2:29 PM
    #16
    TacoNut

    TacoNut IgnoringChrisWatchingEdLi veVicariouslyThroughMJP2

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    what he said.. :thumbsup:
     
  17. May 2, 2009 at 2:59 PM
    #17
    tammikm

    tammikm Well-Known Member

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    my 06 DC 4x4 sr5 does this also but only when the A/C ison, go figure... more torque going to the axel when A/C is on maybe.. no idea.....
     
  18. Oct 28, 2009 at 12:23 PM
    #18
    dustin81

    dustin81 DUSTOFF

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    same issue, im glad im not the only one. i have a single rear drive shaft that was put on when the lift was put on. I bought the truck lifted with only 800 miles on it, and im just rolling over 11k. and this thump hasnt always been there and started about a month ago and is getting worse...
     
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