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98 pete 379 trouble with air leveling valve

Discussion in 'Peterbilt Forum' started by cindymz, Jan 20, 2014.

  1. Jan 20, 2014 #1
    cindymz

    cindymz Bobtail Member

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    Nov 3, 2013
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    I have a 98 pete 379 3406e cat. I had a three axle alignment done. I was in the truck with it not running, and the next thing I hear is like a boom, then air starts leaking. The leveling rod came off the rubber gromet on the bottom, air was coming out of the line. When you move the rod up and down it is very loose. When they do an alignment do they take that off for some reason? And there is no air in the air bags. Does that mean that valve is no good?

    Thanks appreciate the help.
     
    cindymz, Jan 20, 2014
    cindymz, Jan 20, 2014
    #1
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  3. Jan 20, 2014 #2
    TwinStickPeterbilt

    TwinStickPeterbilt Heavy Load Member

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    Mar 16, 2013
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    You'll need a new valve. It's used to adjust air bag pressure.
     
    TwinStickPeterbilt, Jan 20, 2014
    TwinStickPeterbilt, Jan 20, 2014
    #2
  4. Jan 20, 2014 #3
    baha

    baha Road Train Member

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    you might need to buy new arm,1st ck for clamp on rubber rod being tight?
     
    baha, Jan 20, 2014
    baha, Jan 20, 2014
    #3
  5. Jan 20, 2014 #4
    Flightline

    Flightline Road Train Member

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    Probably just timing. They shouldn't have had to mess with the leveling valve.
    Sounds like something got into the valve causing it to stick. Might be able to put it back together with no problems.
    And sometimes they just go out.
    I've yet to find a leveling valve to last for a long time without leaking. I've actually had new ones leak 1-2 months down the road.
     
    Flightline, Jan 20, 2014
    Flightline, Jan 20, 2014
    #4
  7. Jan 20, 2014 #5
    cindymz

    cindymz Bobtail Member

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    Nov 3, 2013
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    Thanks everyone for the help.
     
    cindymz, Jan 20, 2014
    cindymz, Jan 20, 2014
    #5
  8. Jan 20, 2014 #6
    Flightline

    Flightline Road Train Member

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    Your Welcome. That's what the forum is for.

    Also there is a Thanks button on each reply to give thanks numbers to those who deserve it.
     
    Flightline, Jan 20, 2014
    Flightline, Jan 20, 2014
    #6
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