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Suspension issue 97 fld 120

Discussion in 'Trucks [ Eighteen Wheelers ]' started by nhramember, Sep 7, 2016.

  1. Sep 7, 2016 #1
    nhramember

    nhramember Light Load Member

    86
    25
    Apr 2, 2012
    0
    My fld 120 is bucking like a bronco when i hit bridge joints or hard bums in the road. I replaced the leveling valve its still doing it. Is there anything else left ? I replaced shocks about 3months ago. Has anyone else experienced things.
     
    nhramember, Sep 7, 2016
    nhramember, Sep 7, 2016
    #1
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  3. Sep 7, 2016 #2
    Heavyd

    Heavyd Road Train Member

    7,811
    6,264
    Feb 4, 2009
    0
    Is the ride height correct?
     
    Heavyd, Sep 7, 2016
    Heavyd, Sep 7, 2016
    #2
  4. Sep 7, 2016 #3
    mnmover

    mnmover Road Train Member

    1,237
    1,104
    Apr 5, 2009
    Lichfield MN
    0
    Front shocks or rear shocks or both? check the moving joints at the rear of the front springs, they wear out too, and also the air bags and shocks under the sleeper along with the ride height control under the cab and sleeper.
     
    mnmover, Sep 7, 2016
    mnmover, Sep 7, 2016
    #3
  5. Sep 7, 2016 #4
    passingthru69

    passingthru69 Road Train Member

    8,740
    34,849
    Jul 12, 2009
    davenport,Ia / ratchaburi, thailand
    0
    What about your spring bushings
     
    passingthru69, Sep 7, 2016
    passingthru69, Sep 7, 2016
    #4
  6. Sep 7, 2016 #6
    TheThickster

    TheThickster Bobtail Member

    2
    2
    Sep 7, 2016
    0
    Are you making enough air pressure? My Fld wasnt pushing out enough air pressure and the bags wouldn't fully inflate or all of a sudden they would deflate. Simple tweak of the air governor fixed the problem.
     
    TheThickster, Sep 7, 2016
    TheThickster, Sep 7, 2016
    #6
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