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
⌃

Trailer Brakes Grabbing

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Chevyho, Feb 12, 2014.

  1. Feb 12, 2014 #1
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
    0
    I have been posting quite a few questions lately and am very thankful for all the help. Problem I am having is on a trailer that is only half a year old when I am comming up to a stop and apply the brakes the peddle goes down, down, down then all of a sudden the trailer brakes grab harsh for a second then seem to function normal. Its impossible to ease in to it. Just wondering what would cause this?
     
    Chevyho, Feb 12, 2014
    Chevyho, Feb 12, 2014
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Feb 12, 2014 #2
    mtoo

    mtoo Road Train Member

    1,936
    4,514
    Jan 15, 2011
    Retired on bended knee
    0
    Could be a wheel seal starting to leak. Not really enough to see, but just enough to contaminate the shoe and cause it to grab.
     
    mtoo, Feb 12, 2014
    mtoo, Feb 12, 2014
    #2
    Chevyho Thanks this.
  4. Feb 12, 2014 #3
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
    0
    All the brakes grab hard, when icey they all lock up.. Gotta be a valve or something
     
    Chevyho, Feb 12, 2014
    Chevyho, Feb 12, 2014
    #3
  5. Feb 12, 2014 #4
    mc8541ss

    mc8541ss Road Train Member

    1,467
    2,015
    Sep 22, 2007
    Lower Alabama
    0
    Check bobtail proportioning valve on the tractor. Also either try and hook up to someone else's trailer and see if it does it and have them hook up to yours. See if you can narrow it down to truck or trailer.
     
    mc8541ss, Feb 12, 2014
    mc8541ss, Feb 12, 2014
    #4
    Chevyho Thanks this.
  7. Feb 12, 2014 #5
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
    0
    Excellent idea on the trailer swap.. Any other valves that could affect it?
     
    Chevyho, Feb 12, 2014
    Chevyho, Feb 12, 2014
    #5
  8. Feb 12, 2014 #6
    mc8541ss

    mc8541ss Road Train Member

    1,467
    2,015
    Sep 22, 2007
    Lower Alabama
    0
    There are several on the trailer. But not sure which ones would cause that. I know the one I told you because I had to change it out on mine. I would try and find out for sure that it is the trailer then if it is and it's only 6 mos old I would take it back to the dealer. Problem is some of these valves are $300 or more and would hate to throw parts at it not knowing for sure.
     
    mc8541ss, Feb 12, 2014
    mc8541ss, Feb 12, 2014
    #6
    Chevyho Thanks this.
  9. Feb 12, 2014 #7
    Chevyho

    Chevyho Medium Load Member

    350
    55
    Dec 13, 2013
    0
    Yah good call, thanks for the help
     
    Chevyho, Feb 12, 2014
    Chevyho, Feb 12, 2014
    #7
  10. Nov 22, 2023 #8
    Volvoowner007

    Volvoowner007 Bobtail Member

    13
    4
    Jun 8, 2018
    0
    What was the fix?
     
    Volvoowner007, Nov 22, 2023
    Volvoowner007, Nov 22, 2023
    #8
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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