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fld120 steering problem ! pls someone help me !

Discussion in 'Trucks [ Eighteen Wheelers ]' started by lmfnj, Apr 19, 2012.

Page 2 of 9
  1. Apr 19, 2012 #11
    truckmechanic

    truckmechanic Medium Load Member

    534
    140
    Jan 14, 2012
    Hi Desert Ca
    0
    Kinda sounds like the pumps weak I would put a gauge on it and see what its putting out
     
    truckmechanic, Apr 19, 2012
    truckmechanic, Apr 19, 2012
    #11
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  3. Apr 19, 2012 #12
    lmfnj

    lmfnj Bobtail Member

    41
    0
    Apr 19, 2012
    Union NJ
    0
    cab mounts look ok, air bag and valve work, i have bandnew king pins in, the old ones did the same thing as the new ones, i changed the steering box four times at freightliner and all of them feel pretty much the same. @ truckmechanic pump came back at 2400 psi, i checked the lines and filter was replaced
     
    lmfnj, Apr 19, 2012
    lmfnj, Apr 19, 2012
    #12
  4. Apr 19, 2012 #13
    lmfnj

    lmfnj Bobtail Member

    41
    0
    Apr 19, 2012
    Union NJ
    0
    lmfnj, Apr 19, 2012
    lmfnj, Apr 19, 2012
    #13
  5. Apr 19, 2012 #14
    truckmechanic

    truckmechanic Medium Load Member

    534
    140
    Jan 14, 2012
    Hi Desert Ca
    0
    That's a head scratched you got there I would check the rear suspension out and spring hanger and leaf spring bushings it might be in the tear suspension its worth looking in to
     
    truckmechanic, Apr 19, 2012
    truckmechanic, Apr 19, 2012
    #14
  7. Apr 19, 2012 #15
    bender

    bender Road Train Member

    2,105
    1,360
    Jul 20, 2010
    Don't Kid Yourself
    0
    What is your caster set at on the front axle? You may need to increase caster.
     
    bender, Apr 19, 2012
    bender, Apr 19, 2012
    #15
  8. Apr 20, 2012 #16
    Semi Crazy

    Semi Crazy Road Train Member

    3,033
    2,045
    May 13, 2011
    Middle Tennessee
    0
    Finally someone mentioned caster!

    Have you had the same alignment shop do alignments?
    If so you might try a different shop.
     
    Semi Crazy, Apr 20, 2012
    Semi Crazy, Apr 20, 2012
    #16
  9. Apr 20, 2012 #17
    lmfnj

    lmfnj Bobtail Member

    41
    0
    Apr 19, 2012
    Union NJ
    0
    king pins are brand new, and don't bind, i noticed the box gets VERY hot is that normal ? this is going to force me to sell the truck, ive had every local shop, dealer look at it and they have no idea :(
     
    lmfnj, Apr 20, 2012
    lmfnj, Apr 20, 2012
    #17
  10. Apr 20, 2012 #18
    Heavyd

    Heavyd Road Train Member

    7,804
    6,253
    Feb 4, 2009
    0
    I am joining the Caster band wagon. Many car haulers get lowered suspension and the caster is one the steering geometries that get messed up quickly and easily. Do you have any of the alignment print outs?
     
    Heavyd, Apr 20, 2012
    Heavyd, Apr 20, 2012
    #18
  11. Apr 20, 2012 #19
    bender

    bender Road Train Member

    2,105
    1,360
    Jul 20, 2010
    Don't Kid Yourself
    0
    Your caster Should be in the neighborhood of 5.5 degrees, if it isn't the steering gear will work harder and show more heat, but it shouldn't be firecracker hot. Can you touch it without burning your hand?
     
    bender, Apr 20, 2012
    bender, Apr 20, 2012
    #19
  12. Apr 20, 2012 #20
    lmfnj

    lmfnj Bobtail Member

    41
    0
    Apr 19, 2012
    Union NJ
    0
    no print outs and i know for a fact they didn't touch the caster at all since setting it involves shimming the front axle and that was untouched, as far as the box temp its hot to the point that you can't put your hand on it for make then a second
     
    lmfnj, Apr 20, 2012
    lmfnj, Apr 20, 2012
    #20
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