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Air leaking

Discussion in 'Peterbilt Forum' started by Sodapop, May 11, 2024.

  1. May 11, 2024 #1
    Sodapop

    Sodapop Light Load Member

    93
    7
    Mar 19, 2010
    Blytheville,Ar
    0
    2004 379 Pete, When i apply the brakes , I hear air coming from behind the panel at the fire wall...Was told there are 2 valves, switches there..Anyone with more detail and possible part #'s Thank you
     
    Sodapop, May 11, 2024
    Sodapop, May 11, 2024
    #1
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  3. May 11, 2024 #2
    Deere hunter

    Deere hunter Road Train Member

    1,522
    5,082
    Aug 5, 2017
    Shallowater Texas
    0
    Check and see if your brake lights are working. Your air over electric switch probably blew into two pieces.
     
    Deere hunter, May 11, 2024
    Deere hunter, May 11, 2024
    #2
  4. May 11, 2024 #3
    Sodapop

    Sodapop Light Load Member

    93
    7
    Mar 19, 2010
    Blytheville,Ar
    0
    there working,...when i pull trailer valvedown, or apply brakes from feet pedal I hear the air from firewall, behind that panel..Brakes doesnt seem as good
     
    Sodapop, May 11, 2024
    Sodapop, May 11, 2024
    #3
  5. May 11, 2024 #4
    Deere hunter

    Deere hunter Road Train Member

    1,522
    5,082
    Aug 5, 2017
    Shallowater Texas
    0
    Could be the airline back there going to the brake application gauge also. You're just gonna have to pull that panel and look.
     
    Deere hunter, May 11, 2024
    Deere hunter, May 11, 2024
    #4
    5UG, beastr123 and Sodapop Thank this.
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