Tanks not equalizing

Discussion in 'Freightliner Forum' started by The Deplorable, Jun 21, 2020.

  1. The Deplorable

    The Deplorable Bobtail Member

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    Jan 20, 2020
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    I have a 2015 freightliner cascadia with 150 gal on left side and 120 on right. Here recently the tanks have not been equalizing. The right side is about half to 3/4 full when the left is reading empty. Any help on where to start trouble shooting would greatly be appreciated. Thank you
     
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  3. bad-luck

    bad-luck Road Train Member

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    Had the same problem. It was the tank vent. You need to replace the vent on the tank that has the 1/2 to 3/4. Its located on top of the tank. May or may not have a short hose that runs down the back of the tank
     
  4. Walshy

    Walshy Bobtail Member

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    Jun 10, 2020
    Queensland Australia
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    Definitely sounds like a tank breather issue
     
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  5. 25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    the road less travelled
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    Check and make sure the Equiflow system hasn't been removed from either tank. I drove one like that where it was removed and replaced with a street el, and that one did the same thing. The tank with the gauge had a much lower level than the other one. I only ran it a bit over a month, and was always worried it would run out on me. It never did, though.
     
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  6. The Deplorable

    The Deplorable Bobtail Member

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    Jan 20, 2020
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    Alright guys I took off the valves and checked them and they were both plugged up. I put two new ones on with new hoses so hopefully that will fix the problem.. Thanks everyone
     
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  7. bad-luck

    bad-luck Road Train Member

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    I think you found the problem! And they little vent wasn't cheap either was it?
     
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  8. The Deplorable

    The Deplorable Bobtail Member

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    Jan 20, 2020
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    Well so far so good. Parts were cheap I paid about 15 bucks for two. Thanks .
     
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  9. bad-luck

    bad-luck Road Train Member

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    Glad to here!!
     
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