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Kenworth T800

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Notiller12, Apr 11, 2025.

  1. Apr 11, 2025 #1
    Notiller12

    Notiller12 Bobtail Member

    2
    0
    Apr 2, 2025
    0
    Why is when I push my brake buttons In these lift valves for my axles that are up in the air they are pushing air out of the bottom exhaust port but when I pull the button they stop exhausting is it a faulty valve or why is both axles doing it Thanks
     

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    Notiller12, Apr 11, 2025
    Notiller12, Apr 11, 2025
    #1
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  3. Apr 11, 2025 #2
    Deezl Smoke

    Deezl Smoke Medium Load Member

    476
    311
    Feb 12, 2011
    Hillsboro Oregon
    0
    There may be a hole in a brake diaphragm letting air pass by which then needs to be exhausted like when you let up the foot treadle. It only takes one diaphragm in the whole system to cause all kinds of issues.
     
    Deezl Smoke, Apr 11, 2025
    Deezl Smoke, Apr 11, 2025
    #2
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