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truck shaking when applying brakes down steep grade

Discussion in '2nd Gen. Tacomas (2005-2015)' started by brianwilk, May 22, 2012.

  1. May 22, 2012 at 2:40 PM
    #1
    brianwilk

    brianwilk [OP] Member

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    I've noticed that when I'm going down a steep grade and I apply the brakes my truck starts shaking. It feels like the brakes are not being "grabbed" properly for some reason. my speed is about 60 Mph which is the speed limit and certainly not speeding for the highway. Anyone have any suggestions because the truck definately doesn't feel safe when it's doing that.

    Thanks...
     
  2. May 22, 2012 at 2:46 PM
    #2
    Enzo

    Enzo Well-Known Member

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    I'm thinking warped rotors.
     
  3. May 22, 2012 at 2:58 PM
    #3
    brianwilk

    brianwilk [OP] Member

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    why would it do it only going downhill though?
     
  4. May 22, 2012 at 3:04 PM
    #4
    The Traveler

    The Traveler Desert Chief

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    More weight to stop the vehicle with gravity pulling you downhill. My VW did it all the time...definitely warped rotors.
     
  5. May 22, 2012 at 3:07 PM
    #5
    jsmarine

    jsmarine Well-Known Member

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    x2 warped rotors.
     
  6. May 22, 2012 at 3:09 PM
    #6
    WhatThePho?

    WhatThePho? Greg Graffin 2016

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    The things required to pull bitches
    warped rotors.
     
  7. May 22, 2012 at 3:13 PM
    #7
    Brandon9402

    Brandon9402 uncoordinated dirtbox

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    yup warped rotors. my taco did it for a while and i got new rotors and pads. doesnt do it anymore
     
  8. May 22, 2012 at 3:36 PM
    #8
    gm1ll

    gm1ll Member

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    Before going with new rotors, loosen up the lug nuts and using a torque wrench tighten to 70-80 ftlb. Overtightened or uneven tightened lug nuts will 'warp' the rotors and cause this.
     
  9. May 22, 2012 at 3:49 PM
    #9
    brianwilk

    brianwilk [OP] Member

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    dang, wish i'd known that before I bought it! Is it something that should be done soon or is ok to let it go for a little while? Gotta get the finances together...
     
  10. May 22, 2012 at 3:51 PM
    #10
    elmo7

    elmo7 Easily Replaceable Member

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    Agreed. Whenever you get some tire place to rotate your tires, etc, and you told them the torque spec, when you get home, break em loose and torque em right. Nothing beats getting that shit right because they won't. If they actually break out a torque wrench, don't ever go anyplace else - period - you've found the only place that does it right.
     
  11. May 22, 2012 at 4:07 PM
    #11
    Peru

    Peru Well-Known Member

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    Bingo!

    Ive been through the whole resurface and then new with new pads to no solid results

    i am going to give this a try. the guys who did my shocks did the hang of the end of the breaker bar thing.
     
  12. May 22, 2012 at 4:16 PM
    #12
    Blackcat10

    Blackcat10 Well-Known Member

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    Ok to drive. Along as there is no grinding. If you have grinding pull the wheels and check the brake pads. Its just anoying putting up with vibration. If it gets real excessive you could break a tie rod end
     
  13. May 22, 2012 at 10:31 PM
    #13
    brianwilk

    brianwilk [OP] Member

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    Great! Thanks everyone for the replies! I'm pretty much a vehicle novest so this really helps me out! :)
     
  14. May 23, 2012 at 9:53 PM
    #14
    Schwinn

    Schwinn Well-Known Member

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    You'll probably find it would do it any time you went heavy on the brakes, too. Depends how warped the are. My wife was complaining her old car was doing it, but when I drove it I never felt it. Then one day I wasn't paying attention and came close to locking up at a light. Shook like crazy.
     
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