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Tractor tires shaking/bouncing

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Joecrow83, May 9, 2018.

  1. May 9, 2018 #1
    Joecrow83

    Joecrow83 Bobtail Member

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    May 9, 2018
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    What would cause rear tractor tires to shake or bounce violently after hitting a bump or pothole?
    I have a 20k load on and have to come to a complete stop before the shaking/bouncing stops then can continue,
    Has happened 3 times since I left Toronto, at Quebec border now.
    I see nothing wrong visually
     
    Joecrow83, May 9, 2018
    Joecrow83, May 9, 2018
    #1
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  3. May 10, 2018 #2
    RustyBolt

    RustyBolt Road Train Member

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    Shocks are shot. Probably needs an alignment too if you're feeling it in the steering wheel. You didn't mention if you were. Just throwing that out there.
     
    RustyBolt, May 10, 2018
    RustyBolt, May 10, 2018
    #2
    KB3MMX Thanks this.
  4. May 11, 2018 #3
    BoxCarKidd

    BoxCarKidd Road Train Member

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    A bad or wet balance product in the tire.
    When you accelerate normally centrifugal force distributes it equally around the inside of the tire. Then you hit a large bump at speed it is knocked out of place. It clumps together and you have to start over.
    That is just my guess. Clean the stuff out of the tires and truck on.
     
    BoxCarKidd, May 11, 2018
    BoxCarKidd, May 11, 2018
    #3
    KB3MMX Thanks this.
  5. May 13, 2018 #4
    KB3MMX

    KB3MMX Road Train Member

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    Start with replacing all the shocks. If it's bouncing they're not controlling the suspension anymore.
     
    KB3MMX, May 13, 2018
    KB3MMX, May 13, 2018
    #4
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