air leaks out off red valve inside cab when engage some help as to why

Discussion in 'Freightliner Forum' started by gadomska, Dec 7, 2014.

  1. lwade

    lwade Bobtail Member

    8
    2
    Feb 15, 2013
    0
    When you push in the air valve and you can hear air coming out in the cab valve it means that you have a bad brake can on the trailer (if the red valve's leaking.)
     
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  3. lwade

    lwade Bobtail Member

    8
    2
    Feb 15, 2013
    0
    You have a bad brake can on the trailer if the air is leaking in the dash when you push the red button it.
     
    Getsinyourblood Thanks this.
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