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Help !!!! Cab leveling issues !!!!

Discussion in 'Ask An Owner Operator' started by Browntyreese, Sep 28, 2020.

  1. Sep 28, 2020 #1
    Browntyreese

    Browntyreese Bobtail Member

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    Apr 28, 2017
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    My 2011 International prostar is having leveling issues. It jumps at random and especially when I am parked. I replaced the valve and still having the issues. It is to the point to where it is damaging my lower cab at the rear. The airbags dont have leaks. Can someone please help ???
     
    Browntyreese, Sep 28, 2020
    Browntyreese, Sep 28, 2020
    #1
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  3. Sep 28, 2020 #2
    feldsforever

    feldsforever Road Train Member

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    To make really long storey short. I had kinda the same issue and the only short term cure was to raise the susppension all the way up while I was sleeping.
    But my lifting is no where near as extreme as yours.
     
    feldsforever, Sep 28, 2020
    feldsforever, Sep 28, 2020
    #2
  4. Sep 28, 2020 #3
    Dino soar

    Dino soar Road Train Member

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    How do you mean it jumps?

    You mean like a lowrider the cars with the Hydraulics that bounce up and down?
     
    Dino soar, Sep 28, 2020
    Dino soar, Sep 28, 2020
    #3
  5. Sep 28, 2020 #4
    Old Man

    Old Man Road Train Member

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    Wore out shocks
     
    Old Man, Sep 28, 2020
    Old Man, Sep 28, 2020
    #4
    Browntyreese Thanks this.
  7. Sep 28, 2020 #5
    DaytonTD

    DaytonTD Light Load Member

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    Jul 14, 2019
    Edmonton, Alberta
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    If you have the correct leveling valve and correct ride height position when you put the new one in then it is probably the shocks
     
    DaytonTD, Sep 28, 2020
    DaytonTD, Sep 28, 2020
    #5
    Browntyreese Thanks this.
  8. Sep 28, 2020 #6
    Roger.B1240

    Roger.B1240 Bobtail Member

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    Jun 29, 2020
    Dallas Tx
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    The symptom looks like both front airbags on the front suspension has bad valves on the air supply. There was a recall on that splitter type valve many years ago for the IH Prostar class 8 hd truck for a defect.

    prostar.JPG The suspension has no shock absorbers it uses air bags to lift and stabilize the tractor, the fault is caused by a loss in air pressure.
     
    Last edited: Sep 28, 2020
    Roger.B1240, Sep 28, 2020
    Roger.B1240, Sep 28, 2020
    #6
    Browntyreese Thanks this.
  9. Sep 29, 2020 #7
    Browntyreese

    Browntyreese Bobtail Member

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    Apr 28, 2017
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    Browntyreese, Sep 29, 2020
    Browntyreese, Sep 29, 2020
    #7
  10. Sep 29, 2020 #8
    Browntyreese

    Browntyreese Bobtail Member

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    Apr 28, 2017
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    Yes like a car with hydraulics.
     
    Browntyreese, Sep 29, 2020
    Browntyreese, Sep 29, 2020
    #8
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