Sterling cab air controls stopped working.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tbone716, Feb 2, 2019.

  1. Feb 2, 2019 #1
    tbone716

    tbone716 Bobtail Member

    2
    1
    Feb 2, 2019
    0
    The other day while on the road my air seat, air horn, axle lock, 5th wheel and air bag switches stopped workworking. I went over all the lines multiple times and can't pin point anything. Any ideas?
     
    tbone716, Feb 2, 2019
    tbone716, Feb 2, 2019
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Feb 2, 2019 #2
    AModelCat

    AModelCat Road Train Member

    29,689
    164,678
    Jul 7, 2015
    Canuckistan
    0
    Failed pressure protection valve would be my first guess. I think they're normally mounted on the Primary and Secondary tanks. They don't let any air out of the tanks under 75-90ish PSI to ensure the tractor brakes always have sufficient air pressure in the event of a major leak from an air accessory.
     
    AModelCat, Feb 2, 2019
    AModelCat, Feb 2, 2019
    #2
    tbone716 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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