2013 CASCADIA. Extreme front end death wobble

Discussion in 'Freightliner Forum' started by irishluck09, Aug 15, 2026.

  1. irishluck09

    irishluck09 Medium Load Member

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    I am trying to narrow down this issue on my cascadia.

    Tired are good and newer. Brand new tierod ends and bar, new drag link. Truck had an alignment done on it and it has a very extreme death wobble at like 45 mph.
    You can physically see the steer tires move left and right when driving, both sides.
    This problem started happening after the truck got greased.
    No slop in kingpins.

    What am I missing here?
     
    Last edited: Aug 15, 2026
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  3. Magoo1968

    Magoo1968 Road Train Member

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    We get that issue when the beads the company uses in the steer tires lump up. Drivers hate the beads but boss believes the shop foreman that they work the best even though they need to pop tire and dry them occasionally mostly spring and early winter.. same speed 40 to 50 max it clears up after.. not sure what you balance with but that’s my first guess on the shake..
     
  4. irishluck09

    irishluck09 Medium Load Member

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    so think its the tires or the balance on the tires?
     
  5. Magoo1968

    Magoo1968 Road Train Member

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    Balance on the tires . Cascadias shake like crazy if steers are out of balance enough. Is it possible a balance weight fell off
     
  6. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    I had a similar issue, brand new Kelly steer tires, one was out of round. It would the same as you described, same speed.
     
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  7. irishluck09

    irishluck09 Medium Load Member

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    Im gona take a set of tires of one of my other trucks and see if that fixes it
     
  8. Star Rider

    Star Rider Road Train Member

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    Jack up one front wheel and place a spray can close to the front of it, like 1/8 of an inch
    Spin the wheel and you can see if the tire is out of round.
    Do this on the sidewall of the tire also.
    Do this on the other side.
    If the tires check out after this then do your swap and see.
     
    Diesel Dave, Speedy356 and Magoo1968 Thank this.
  9. 201

    201 Road Train Member

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    Don't forget wheel bearings do funky things, but more than likely a tire. If you ever hit a curb or big pothole, the belts can break and never get it balanced.
     
    Star Rider Thanks this.
  10. irishluck09

    irishluck09 Medium Load Member

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    WEll that was definitely it!

    Steer tires it was. Guessing broken belts like it was mentioned. I just couldn't imagine that would have caused such a bad death wobble.
     
  11. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    What brand of tires were they ? How many miles on them ?
     
    Magoo1968 Thanks this.
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