Front End Bouncing

Discussion in 'Trucks [ Eighteen Wheelers ]' started by DirtyBrown, Apr 14, 2016.

  1. DirtyBrown

    DirtyBrown Bobtail Member

    Joined:
    Dec 1, 2015
    Messages:
    48
    Thanks Received:
    14
    Location:
    Middle Georgia
    0
    Hey guys,

    This columbia I got does fine going down the road empty, but as soon as they load the container the front end wants to bounce around, any ideas what this could be from? Is it the 5th wheel position? or could it be I need new tires and an alignment?

    Thanks yawl
     
  2. JAYRODPA

    JAYRODPA Light Load Member

    Joined:
    Apr 10, 2009
    Messages:
    157
    Thanks Received:
    109
    Location:
    Dingmans Ferry pa
    0
    replace the front shocks. check and see if you are getting any flat spot on you steer tires from tire bounce.
     
  3. DirtyBrown

    DirtyBrown Bobtail Member

    Joined:
    Dec 1, 2015
    Messages:
    48
    Thanks Received:
    14
    Location:
    Middle Georgia
    0
    some cupping on the front tires..when fifth wheel is slid forward it seems to get worse, could it be that my tires are bouncing because of the cupped spots and worse when loaded because of added weight
     
  4. JAYRODPA

    JAYRODPA Light Load Member

    Joined:
    Apr 10, 2009
    Messages:
    157
    Thanks Received:
    109
    Location:
    Dingmans Ferry pa
    0
    The more weight you put on the tires the more they will bounce. pop the shocks off and see how much resistance you get when you push them in. if there bad all you have are the springs. the tires will bounce on every little bump. and will be more pronounce as you add weight.
     
  5. DirtyBrown

    DirtyBrown Bobtail Member

    Joined:
    Dec 1, 2015
    Messages:
    48
    Thanks Received:
    14
    Location:
    Middle Georgia
    0
    10 4, is there much to that?
     
  6. JAYRODPA

    JAYRODPA Light Load Member

    Joined:
    Apr 10, 2009
    Messages:
    157
    Thanks Received:
    109
    Location:
    Dingmans Ferry pa
    0
    2 bolts. no need to jack the truck up.
     
  7. DirtyBrown

    DirtyBrown Bobtail Member

    Joined:
    Dec 1, 2015
    Messages:
    48
    Thanks Received:
    14
    Location:
    Middle Georgia
    0
    thanks man
     
  8. boneebone

    boneebone Road Train Member

    Joined:
    Mar 13, 2009
    Messages:
    2,295
    Thanks Received:
    2,366
    0
    Pushing the shock in is not a well know measure of whether a shock is bad or not, as depending on the manufacturer, Gabriel uses Hydraulic dampening vs. Monroe, which use Gas Pressure.

    Unless you know the maintenance history of the truck or you are the owner, the best thing to do is just replace them as they are inexpensive enough at $45-55 dollars each and most people replace them whether they need to or not at 100k miles.