Losing air 5-6 psi per minute while driving

Discussion in 'Ask An Owner Operator' started by Forever237, May 18, 2019.

  1. 4wheelBoater

    4wheelBoater Bobtail Member

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    Jul 29, 2019
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    Mine does the exact same thing and it’s a 13spd manual. If you figure it out please post
     
  2. 86scotty

    86scotty Road Train Member

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    Aug 27, 2017
    Appalachia
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    Why didn't you save time and do that first? We're talking about a warrantied truck, right? You said it's a 2018. Stop wasting your time with the deadbeats at TA on your nearly new, high tech truck.
     
    black_dog106, Opendeckin and starmac Thank this.
  3. Ezrider_48501

    Ezrider_48501 Road Train Member

    3,812
    4,990
    Apr 2, 2011
    bismarck, nd
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    Iv seen a bad turbo actatior cause similar symptoms
     
    Opendeckin, speedyk and stayinback Thank this.
  4. Sukhwantmalhi

    Sukhwantmalhi Bobtail Member

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    1
    Dec 15, 2020
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    Air leaks when start and run engine shut off no leak any one know Wer problems
     
    Pittstruck Thanks this.
  5. Pittstruck

    Pittstruck Light Load Member

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    175
    Apr 2, 2014
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    Same problem right now. 2013 cascadia. I’m going to see if a new governor does any good. My compressors cycling every 3-4 minutes, but only when engines running.
     
  6. DaytonTD

    DaytonTD Light Load Member

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    78
    Jul 14, 2019
    Edmonton, Alberta
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    Probably something to do with air suspension or air on the transmission. You guys realize your compressor is always operating as long as the engine is running? The air is just either being redirected back into the intake or charging in the tanks.
     
    Pittstruck Thanks this.
  7. lester

    lester Road Train Member

    1,538
    3,390
    Jan 2, 2012
    NW, Iowa
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    Thats not exactly right. Yes obviously the air compressor is always turning but when its unloaded, not demanded to build pressure, its not making any compression, i believe both the intake and exhaust side are held open thus its just turning freely without any resistance and slightly perhaps increasing its life. I think
     
    flood Thanks this.
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