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Air dryer purge valve leaking air overnight?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mitmaks, Apr 20, 2025.

  1. Apr 20, 2025 #1
    mitmaks

    mitmaks Road Train Member

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    It seems like purge valve is leaking air and draining air out of tanks and airbags. Can leaking purge valve drain tanks/air system or theres check valves to prevent air leaking from the tanks/air bags?
    2013 Kenworth T660
     
    mitmaks, Apr 20, 2025
    mitmaks, Apr 20, 2025
    #1
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  3. Apr 24, 2025 #2
    abyliks

    abyliks Road Train Member

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    ludlow MA
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    What dryer do you have? I just went through a fcking nightmare on my w9 with an adsp on it, but that was also due to the Econ valve getting removed at some point in time
     
    abyliks, Apr 24, 2025
    abyliks, Apr 24, 2025
    #2
  4. Apr 24, 2025 #3
    mitmaks

    mitmaks Road Train Member

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    It's bendix ad is
     
    mitmaks, Apr 24, 2025
    mitmaks, Apr 24, 2025
    #3
  5. Apr 27, 2025 at 1:47 PM #4
    abyliks

    abyliks Road Train Member

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    ludlow MA
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    Start by Put a purge valve kit in it, I don’t think there’s a check valve on the IS, my sp has one before the wet tank but it’s extended purge
     
    abyliks, Apr 27, 2025 at 1:47 PM
    abyliks, Apr 27, 2025 at 1:47 PM
    #4
  7. Apr 30, 2025 at 10:28 AM #5
    mitmaks

    mitmaks Road Train Member

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    So leaky purge valve won't drain tanks overnight?
     
    mitmaks, Apr 30, 2025 at 10:28 AM
    mitmaks, Apr 30, 2025 at 10:28 AM
    #5
  8. Apr 30, 2025 at 6:49 PM #6
    abyliks

    abyliks Road Train Member

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    ludlow MA
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    It could. Start with replacing the purge valve
     
    abyliks, Apr 30, 2025 at 6:49 PM
    abyliks, Apr 30, 2025 at 6:49 PM
    #6
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