Freight liner not building enough air while driving

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Dunkin1122, Jan 16, 2021.

  1. Dunkin1122

    Dunkin1122 Bobtail Member

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    Jan 16, 2021
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    Hi I’m Having a problem with my air system while parked it will build up like it’s supposed to but while driving it will not go above 110.any help will be greatly appreciated
     
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  3. pavrom

    pavrom Road Train Member

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  4. Hulld

    Hulld Road Train Member

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    Spring brake leaking?
    Does it do it when parked with the brake buttons pushed in?
     
    magoo68 and BoxCarKidd Thank this.
  5. Dunkin1122

    Dunkin1122 Bobtail Member

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    That is a good question I will check when I stop next
     
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  6. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Tires have auto inflators? Bad tire someplace.
     
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  7. AModelCat

    AModelCat Road Train Member

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    Considering we have no clue what truck all I can say is air leak.
     
  8. snowwy

    snowwy Road Train Member

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    110 isn't high enough?

    Don't dryers have a adjustment?
     
  9. Dave1837

    Dave1837 Medium Load Member

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    You shouldn't be driving it with a leak that bad. Park and get it fixed. Air leaks don't fix themselves, they only get worse. The last thing you want to happen is to be driving and having both your red and yellow buttons pop out...

    Definitely sounds like a bad maxi can
     
    OldeSkool Thanks this.
  10. OldeSkool

    OldeSkool Heavy Load Member

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    If that’s what it is, put a vise grip on the air hose to the can that’s leaking and get it to a shop. Do not keep driving. It will get worse and you will be parked.
     
  11. Hulld

    Hulld Road Train Member

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    If it does it parked shut the truck off and you will hear where your leak is.
    Of course block the wheels before you do this so the truck doesn’t roll over you or away.
     
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