Explain this please ...2013 cascadia vibrations.

Discussion in 'Freightliner Forum' started by bzinger, May 23, 2022.

  1. bzinger

    bzinger Road Train Member

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    Last week I started noticing what I thought was a steer tire vibration on my 80% hankook steer tires that are wearing perfectly and thought time to get them balanced.
    But today before I got a balance done I was in my home shop for a lube it was discovered both front drive axle air bags were leaking and coming apart on the bottom of the bags at the saddle .
    Rear bags were fine so put new front bags on and headed out intending to get the balance work done in a couple days on some down time .
    First I noticed my truck rode better and about 100 miles later it dawned on me no more vibration even at 80 mph which isn't how fast I normally drive lol.
    Can anyone explain this ?
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Yes
     
  4. D.Tibbitt

    D.Tibbitt Road Train Member

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    Might just be the bags were hard and stiff and making it more bumpy.. Idk Just shooting in the dark here.
     
  5. Short Fuse EOD

    Short Fuse EOD Road Train Member

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    Could your ride height up front not have been to spec with the leak?
     
  6. austinmike

    austinmike Road Train Member

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  7. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    So, driveline angle has much to do with vibration. Have you ever ran with your suspension down?

    If so, that vibration you felt and tranny noises you heard were due to driveline angle.

    And obviously, leaking air bags can affect that if severe.
     
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  8. Another Canadian driver

    Another Canadian driver Heavy Load Member

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    No explaining for you.
    Just an advice.
    Always drive 80 miles an hour.
    You'll feel better.
    Until you get a speeding ticket, of course.
    Just having some innocent fun. LOL.
    You are doing good.
    Cheers.
     
    merv85, Coffey and bzinger Thank this.
  9. bzinger

    bzinger Road Train Member

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    No I haven't but that certainly makes sence .
     
  10. beastr123

    beastr123 Road Train Member

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    sounds like a u-joint angle imbalance that was corrected with the new airbags.
     
  11. Another Canadian driver

    Another Canadian driver Heavy Load Member

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    Yes, for a short time.
    It damaged the transmission ball bearing after a while.
    It was changed when I overhauled the transmission.
    Not recommended for a long time.
    Lesson learned,
     
    bzinger Thanks this.
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