Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

99 Western Star HAS 400 airbag kicking and bucking at 80-100km

Discussion in 'Western Star Forum' started by DiligafWesternStar, Sep 11, 2018.

  1. Sep 11, 2018 #1
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    99 Western Star has a HAS 400 airbag suspensions - starts kicking and bucking at 80-100km/h.
    Does anyone have any suggestions?

    In the past year have replaced

    Front tailshaft
    Wheels balanced and round
    New airbags
    New valves
    New bushes

    Jackshaft slightly worn - could this be causing the issue?
     
    DiligafWesternStar, Sep 11, 2018
    DiligafWesternStar, Sep 11, 2018
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Sep 11, 2018 #2
    Cetane+

    Cetane+ Road Train Member

    1,304
    882
    Sep 29, 2013
    Albany, NY
    0
    Do any of the tires develop weird patterns on the tread? Front included? Does it do it bobtail/ trailer/ different trailers?
     
    Cetane+, Sep 11, 2018
    Cetane+, Sep 11, 2018
    #2
    mric672 Thanks this.
  4. Sep 13, 2018 #3
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    Tyres are fine bobtail or with different trailers
     
    DiligafWesternStar, Sep 13, 2018
    DiligafWesternStar, Sep 13, 2018
    #3
  5. Sep 13, 2018 #4
    AModelCat

    AModelCat Road Train Member

    29,419
    161,709
    Jul 7, 2015
    Canuckistan
    0
    Driveline angles/ride height?
     
    AModelCat, Sep 13, 2018
    AModelCat, Sep 13, 2018
    #4
  7. Sep 14, 2018 #5
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    Driveline angles and ridehide already sorted

    Appreciate the help so far
     
    DiligafWesternStar, Sep 14, 2018
    DiligafWesternStar, Sep 14, 2018
    #5
  8. Sep 14, 2018 #6
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    Height*
     
    DiligafWesternStar, Sep 14, 2018
    DiligafWesternStar, Sep 14, 2018
    #6
  9. Sep 22, 2018 #7
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    Still having dramas, spent over 10 thousand dollars trying to find the issue...

    Open to any suggestions
     
    DiligafWesternStar, Sep 22, 2018
    DiligafWesternStar, Sep 22, 2018
    #7
  10. Sep 28, 2018 #8
    DiligafWesternStar

    DiligafWesternStar Bobtail Member

    6
    0
    Sep 11, 2018
    0
    Bump
     
    DiligafWesternStar, Sep 28, 2018
    DiligafWesternStar, Sep 28, 2018
    #8
  11. Dec 30, 2018 #9
    PTSCummins

    PTSCummins Bobtail Member

    42
    29
    Dec 7, 2018
    0
    Dumb question and I know I'm reviving a thread from months ago, but are your first and second drive bags plumbed together?

    I've got the same suspension, and some idiot took the side leveler off and bridged all 4 bags to the load leveller. When I bought the truck it was 10 hours from home. Axle hop the whole way...talked to the PO and he said one of his guys broke the leveller on an FSR trying to adjust it, so they bridged the bags to get out and forgot to change it before the truck sold.

    Yeah that got fixed right away, and no hop since.

    Should also mention, this is a 4964FX with a 16.5 dump body on.
     
    PTSCummins, Dec 30, 2018
    PTSCummins, Dec 30, 2018
    #9
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.