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Air leaking out of this connector even after replaced.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Shotgun94, Apr 25, 2019.

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  1. Apr 25, 2019 #11
    Mr Bob

    Mr Bob Light Load Member

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    No those are inline quick release valves. the tractor protection valve would probly be under the cab where its hard to get to.
     
    Mr Bob, Apr 25, 2019
    Mr Bob, Apr 25, 2019
    #11
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  3. Apr 25, 2019 #12
    Shotgun94

    Shotgun94 Medium Load Member

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    I may swap it out again just to see. But this is a rental trailer so they fix whatever happens. I am thinking I will have the TA look at it and check it out.
    It is on the trailer valve. I pulled the Johnny bar and nothing different happend. I pushed in the trailer brake and after some time air begins to shoot out of that diaphragm area again. They are only 20 bucks a piece.
     
    Shotgun94, Apr 25, 2019
    Shotgun94, Apr 25, 2019
    #12
  4. Apr 25, 2019 #13
    Mr Bob

    Mr Bob Light Load Member

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    Im sorry, we have a communication error. So you push in the trailer valve (red knob) what happens?
     
    Mr Bob, Apr 25, 2019
    Mr Bob, Apr 25, 2019
    #13
  5. Apr 25, 2019 #14
    Mr Bob

    Mr Bob Light Load Member

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    Ok, what is your air pressure when it starts leaking air?
     
    Mr Bob, Apr 25, 2019
    Mr Bob, Apr 25, 2019
    #14
  7. Apr 25, 2019 #15
    Intothesunset

    Intothesunset Road Train Member

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    Are the hoses hooked correctly to trailer?
    Red on right gladhand, Blue on left gladhand?
    It happens in the dark easily.
     
    Intothesunset, Apr 25, 2019
    Intothesunset, Apr 25, 2019
    #15
  8. Apr 25, 2019 #16
    BoxCarKidd

    BoxCarKidd Road Train Member

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    That is correct and him taking 5 minutes to connect to another trailer would answer a lot of questions. Probably a bad chamber or valve on the trailer.
     
    BoxCarKidd, Apr 25, 2019
    BoxCarKidd, Apr 25, 2019
    #16
    IH Truck Guy Thanks this.
  9. Apr 25, 2019 #17
    Shotgun94

    Shotgun94 Medium Load Member

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    Georgia
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    Yes the gladhands are hooked up correctly. I appreciate all y'alls input. I will let you guys know what I find. It may be a few days or so. The pressure is fine while driving, stopping. But it takes a bit longer for the brakes to release to start moving after I push in the red button.
    I'll let you guys know what I find.
    Thx again.
     
    Shotgun94, Apr 25, 2019
    Shotgun94, Apr 25, 2019
    #17
  10. Apr 25, 2019 #18
    Mr Bob

    Mr Bob Light Load Member

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    If it takes longer to release the parking brakes , that may suggest a restriction in the system. ...But then after awhile air leaks out? That is not normal, and not fine. Is your compressor cycling often?
     
    Mr Bob, Apr 25, 2019
    Mr Bob, Apr 25, 2019
    #18
  11. Apr 25, 2019 #19
    Shotgun94

    Shotgun94 Medium Load Member

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    Sep 24, 2017
    Georgia
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    I haven't noticed. I'm going to try putting a quarter behind my emergency glad hand and pushing in and releasing the trailer brakes and see if I see any difference as a test.
     
    Shotgun94, Apr 25, 2019
    Shotgun94, Apr 25, 2019
    #19
  12. Apr 26, 2019 #20
    loudtom

    loudtom Road Train Member

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    Have you tried rebooting your modem?
     
    loudtom, Apr 26, 2019
    loudtom, Apr 26, 2019
    #20
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