Cat c15 not building air.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by anthonyar4, Jul 7, 2020.

  1. anthonyar4

    anthonyar4 Medium Load Member

    385
    85
    Jun 8, 2019
    0
    Went down the highway and my warnings came on brakes locked up no air whatsoever. Looked for leak no cut lines. Took off air compressors outlet and it was blowing inconsistent. The guy at the cat shop said it should
    Blow my hand off of it. He said bad air compressor. Any tips? Will not build any air whatsoever
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. bad-luck

    bad-luck Road Train Member

    1,110
    1,138
    Nov 16, 2013
    Baltimore, Maryland
    0
    If you don't her any audible leaks, and you took the metal braided line off of the back of the air compressor. And it is not blowing any air, inconsistent air, or if you can hold your thumb over the port you need a new compressor
     
    Shawn2130 Thanks this.
  4. AModelCat

    AModelCat Road Train Member

    16,722
    70,203
    Jul 7, 2015
    Edmonton
    0
    I'd pull the unloader valve in the head and inspect before replacing compressor. Seen them gum up and stick.
     
    pushbroom, lester, beastr123 and 2 others Thank this.
  5. That or simply the air gov went bad.
     
    lester, beastr123, BoxCarKidd and 2 others Thank this.
  6. anthonyar4

    anthonyar4 Medium Load Member

    385
    85
    Jun 8, 2019
    0
    They are manually applying air and it won’t build air. I loser valve?
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  • Draft saved Draft deleted