Cab/Sleeper

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by BRD TRANSPORT, Apr 13, 2024.

  1. BRD TRANSPORT

    BRD TRANSPORT Light Load Member

    177
    67
    Jul 6, 2018
    0
    03 peterbilt 379
    Old Werner truck.why is my cab and sleeper dropping.
    And takes so long to air up.
    Even when guage showed 120PSI+.
     
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  3. Deere hunter

    Deere hunter Road Train Member

    1,405
    4,404
    Aug 5, 2017
    Shallowater Texas
    0
    You've got a slow leak in one of your airbags on the cab.
     
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  4. Lazer

    Lazer Road Train Member

    1,474
    2,298
    Jan 22, 2017
    0
    It possible the leveling valve needs replacing. Just not letting enough air thru the valve.
     
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