Valve spewing air

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Leonard1983, Feb 23, 2025.

  1. Leonard1983

    Leonard1983 Bobtail Member

    13
    1
    Sep 28, 2023
    0
    This valve is spewing out air where I am pointing. If i shut the truck off and let the air pressure in both air tanks go down it will quit spewing air. The primary air tank goes down to 70 psi and the secondary goes down to 100 psi. It is located under the headache rack on the driver's side. One side of the valve connects to the air tanks and the other side connects to the abs valve.
     

    Attached Files:

  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. LongHaulTrailer

    LongHaulTrailer Bobtail Member

    25
    29
    Jul 4, 2024
    Saraland, Alabama
    0
    Looks like the pressure reducer for your hill start assist valve. Your best bet is to call the dealer with your VIN and have them look it up because there's a few different ones for different pressures. Had to find one for a KW and it was a pain because the old one wasn't on the truck anymore thanks to the air and electrical systems back there being trashed. That's an example one if you need to show anyone.

    [​IMG]
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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