Air problem

Discussion in 'Questions To Truckers From The General Public' started by eddy274, Jun 24, 2018.

  1. eddy274

    eddy274 Bobtail Member

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    Jun 24, 2018
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    Hello everybody, I have volvo 2012 670 d-13 engine my problem is that the truck builds up air more than 120 up to 160 psi in the primary tank but the secondary remains normal 120psi i replaced the air governer that i thought was the issue but still the same , any ideas on what could be the issue ?
     
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  3. Oldironfan

    Oldironfan Road Train Member

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    Sounds like purge valve is sticking?
     
  4. AModelCat

    AModelCat Road Train Member

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    Not having an air system schematic available to me my best guess is your governor could be sensing off the 120 psi tank but a bad 2 way check valve is causing most of the air to go to the other tank?
     
    Last edited: Jun 24, 2018
    Oldironfan Thanks this.
  5. WiggleWagon

    WiggleWagon Light Load Member

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    Let us know what it ends up being.
     
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