Air draining

Discussion in 'International Forum' started by dom14, Jan 31, 2017.

  1. Jan 31, 2017 #1
    dom14

    dom14 Light Load Member

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    hello one of my tanks keeps draining every time I pull the parking breaks and shut off the truck.. overnight my cab air bag drains and tanks are at 30psi in the morning could a bad cab bag cause this ?
     

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    dom14, Jan 31, 2017
    dom14, Jan 31, 2017
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  3. Jan 31, 2017 #2
    Bakerman

    Bakerman Road Train Member

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    You have an air leak somewhere. Start the truck, let the pressure build to 120 and then shut the truck off and listen for the air leak in the places you describe.
     
    Bakerman, Jan 31, 2017
    Bakerman, Jan 31, 2017
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  4. Jan 31, 2017 #3
    Heavyd

    Heavyd Road Train Member

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    Yep, just a leak somewhere. Also, check your seat to make sure you don't have the "back cycler" massager turned on. It runs on air only and will drain your air quickly over night.
     
    Heavyd, Jan 31, 2017
    Heavyd, Jan 31, 2017
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  5. Feb 7, 2017 #4
    Bean Jr.

    Bean Jr. Road Train Member

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    How old is your truck? That is kind of a slow leak. Volvos will lose to 0 in 2 hours. Are you loaded? I've had a couple of 10 year or older Paccar vehicles that would lose after about 6 hours if they had a heavy load.
     
    Bean Jr., Feb 7, 2017
    Bean Jr., Feb 7, 2017
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