Bouncing and tire problem

Discussion in 'Ask An Owner Operator' started by Adriantx, May 19, 2021.

  1. Adriantx

    Adriantx Light Load Member

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    Dec 29, 2018
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    I am hopeing maybe someone on here has had the same problem I am haveing I have had bouncing problem with my truck for a while comeing from my front axle I have already replaced leaf springs, bearings, shocks and wheels and new tires also drag link , ubolts, and u joints but my truck still bounces at times and am noticing that my driver side steer tire is finishing faster then my passenger side steer tire driver side is at 16/32 while passenger side is at 19/32 thinking it might be a king pin problem but had them checked and was told they were good no type of ply truck is a 2016 kenworth t680 if any one has any experience with similar issue your feed back would be appreciated.
     
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  3. Long FLD

    Long FLD Road Train Member

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    Describe the “bounce”. Where do you feel it? In the steering wheel? Do you have drum brakes or disk? Have you had a good 3 axle alignment or did they just set the toe when you did all the front end work? What rear suspension do you have? Have you checked the bushings in the rear suspension?
     
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  4. Anywhichwaybutloose

    Anywhichwaybutloose Light Load Member

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  5. 77fib77

    77fib77 Road Train Member

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    IMG_20210302_093007393.jpg

    I hit a huge pothole at 60 mph on the highway during evening commute. This caused a good amount of bounce.
     
  6. Brettj3876

    Brettj3876 Road Train Member

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    Check your ride height? When your off the fuel and coasting the driveline isn't louder than normal? Feel it in the seat or the wheel?
     
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  7. 77fib77

    77fib77 Road Train Member

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    You did a 3 axle alingment? You changed everything else.
     
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  8. slow.rider

    slow.rider Road Train Member

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    When you say bouncing do you mean bottoming out? Like you run out of shock absorber and hit metal on metal?
     
  9. Mattflat362

    Mattflat362 Road Train Member

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    I have this same issue and have also done everything the OP did.

    Mine hops at 35MPG and again at 72MPH.

    It is always a tire for me when this happens! Spin them on a machine and you will see it clearly.

    OP, are you on the tires you were on prior to the front end work? The damage may have already been done and now you need new steers even thought they aren't that old!
     
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  10. Anywhichwaybutloose

    Anywhichwaybutloose Light Load Member

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  11. Bigtruckdrivah

    Bigtruckdrivah Light Load Member

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    If that’s a Goodyear steer, swap them out. I just chased the exact same issue. Had a bounce, just enough to make the hood wiggle at various speeds or weights. I put shocks, u bolts, 3 axle alignment, Centramatics, and finally just swapped the tires. That one in the pic, mine looked the same and it only got worse. After it was dismounted it was obviously a bad tire it was out of round bad. Sucks to replace steers with 18/32 left on them
     
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