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Air dryer keeps purging

Discussion in 'Freightliner Forum' started by dipmode, Dec 7, 2024.

  1. Dec 7, 2024 #1
    dipmode

    dipmode Bobtail Member

    3
    0
    Dec 7, 2024
    0
    This is a 2022 Cascadia 126, the purge valve on the air dryer keeps purging every second. Asked a friend about this and he mentioned it could be the air dryer filter which I changed and that didn't fix the issue. I made a video which I will attach to this post.
    What would be the problem?
    Thanks
     
    dipmode, Dec 7, 2024
    dipmode, Dec 7, 2024
    #1
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  3. Dec 7, 2024 #2
    dipmode

    dipmode Bobtail Member

    3
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    Dec 7, 2024
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    Changed the air dryer filter and that didn't fix the issue. What could be the problem?
    This is a 2022 cascadia 126
     
    dipmode, Dec 7, 2024
    dipmode, Dec 7, 2024
    #2
  4. Dec 8, 2024 #3
    Inderjit

    Inderjit Heavy Load Member

    702
    695
    Sep 17, 2017
    0
    The air from the governor that unloads the compressor and opens the purge valve on the dryer is leaking off somewhere.
     
    Inderjit, Dec 8, 2024
    Inderjit, Dec 8, 2024
    #3
  5. Dec 8, 2024 #4
    dipmode

    dipmode Bobtail Member

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    0
    Dec 7, 2024
    0
    Thank you veere, I just put it in shop and let's see what they say. I asked my one mechanic and that's what he had told me as well.
     
    dipmode, Dec 8, 2024
    dipmode, Dec 8, 2024
    #4
  7. Dec 8, 2024 #5
    supersnackbar

    supersnackbar Road Train Member

    18,196
    42,650
    Aug 19, 2007
    Your Town, USA
    0
    It is definitely the air governor. They use to be an easy fix without crawling under the truck, but they moved it on most of today's trucks so you have to crawl under.
     
    supersnackbar, Dec 8, 2024
    supersnackbar, Dec 8, 2024
    #5
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