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Rear brakes disengaging after fronts? (jolt/lunge)

Discussion in '2nd Gen. Tacomas (2005-2015)' started by jtice, Jul 28, 2011.

  1. Jul 28, 2011 at 7:07 AM
    #1
    jtice

    jtice [OP] Well-Known Member

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    I have a 2011 Tacoma with under 3K miles on it, and pretty much since I have had it I have felt some odd things in what I think is the brakes.
    Seems most noticeable when letting off the brake from sitting at a stop light.
    Best way I can describe it is it feels like the front brakes disengage first and them a split second later the rear. Just an odd little jolt from the rear is felt.
    No other indications that a brake is sticking or dragging though.
    Only other thing I could think of is some sort of drive train component taking up slack?
     
  2. Jul 28, 2011 at 7:11 AM
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    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    I'm guessing you meant to say you have a 2011, in which case you should be under warranty and the dealership would fix this for free. If you wanted to try something simple yourself, you could bleed the brakes and see if that helps but with a truck that new, I'd take it back to the shop and make it their problem.
     
  3. Jul 28, 2011 at 7:12 AM
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    babytruck

    babytruck Babytruck, babytruck...I've got a babytruck :)

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    If it's a ten year old truck with only 3k on it, I'd say they've become funkay due to non use. Things do rot even by sitting there. Exposure to elements or lack of lubrication over the years can do some darn good damage.
     
  4. Jul 28, 2011 at 7:13 AM
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    Pugga

    Pugga Pasti-Dip Free 1983 - 2015... It was a good run

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    His sig says it's a 2011, I think he mistyped ;)
     
  5. Jul 28, 2011 at 7:15 AM
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    babytruck

    babytruck Babytruck, babytruck...I've got a babytruck :)

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  6. Jul 28, 2011 at 7:24 AM
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    jtice

    jtice [OP] Well-Known Member

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    Yes I am an idiot and cant type, I meant a 2011, I corrected my post, thanks. LOL

    Yea odds are I will end up just taking it into the dealer, could have them do that and the oil change, etc. Though I typically like doing that myself.
    Was just curious if anyone else ever felt something like this.
     
  7. Jul 28, 2011 at 7:26 AM
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    poynter

    poynter Well-Known Member

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    My truck does the same thing. It also does the "bump" when you come to a stop.
     
  8. Jul 28, 2011 at 7:36 AM
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    jtice

    jtice [OP] Well-Known Member

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    Have you also noticed if you only the the brake pressed softly, but still easily enough to hold you in place, that every so often your truck will lurch forward just for a split second?
    Kinda like the master cylinder does something for a second to make the brake feel different?
     
  9. Jul 28, 2011 at 7:43 AM
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    Krazie Sj

    Krazie Sj Resident Jackass

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    That's because of the air conditioner.
     
  10. Jul 28, 2011 at 7:50 AM
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    DKSComp

    DKSComp Member

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    The lunge you feel is actually caused by spring wrap. The weak springs on the rear of a Tacoma actually wrap up a bit when the brakes are applied changing driveshaft angle. When you release the brake the wrap comes out of the spring, the driveshaft returns to a normal position and the product is a lunge.
    The cure on some vehicles is the rear spring TSB, on others there was a posting about putting booster spring (autozone) on rear of leaf springs. Might do a search and find the particulars, the booster cured mine.
     
  11. Jul 28, 2011 at 7:59 AM
    #11
    jtice

    jtice [OP] Well-Known Member

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    Hmmm spring wrap, that does sound like it could cause what I am feeling actually.

    I have also noticed that lets say I go over a small speed bump at 30 mph or so, the front end feels very solid and rides over it very well, but the rear end kinda, I donno, almost has a very small recovery/rebound bounce to it?
    I realize the rear end of the truck is alot lighter than the front so thats most of it.
    But could that also be due to weak springs? or is that mainly a shock related thing?
     
  12. Jul 28, 2011 at 8:02 AM
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    Pugga

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    Weak leafs mostly but shocks play into it as well. I was very impressed with how much of a difference the 5100's in the rear of mine made for on road driving and speed bumps.
     
  13. Jul 28, 2011 at 8:18 AM
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    buddywh1

    buddywh1 Well-Known Member

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    I assume you have auto transmission? Then it's a combination of axle wrap and a sticky spline shaft at the soft-mounted carrier bearing.

    Search for it... really common on DC's and AC's with two-piece drive shafts. Not a whole lot you can do, but some people have put on one-piece shafts and chucked the carrier bearing. Other's have put on spring clamps in front of the axle. I did but it only worked for a while.
     
  14. Jul 28, 2011 at 8:38 AM
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    OffroadToy

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    A aal will fix the problem.
     
  15. Dec 24, 2011 at 1:59 AM
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    HAWAIICALIVEGAZ

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    I know this is an old thread but would a leaf pack replacement fix it as well? I just picked up a Deavers J66 10 leaf pack that i'll be installing soon...
     
  16. Dec 25, 2011 at 10:07 PM
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    HAWAIICALIVEGAZ

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    anyone know?
     
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