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Davco 384

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Y-L, Sep 1, 2020.

  1. Sep 1, 2020 #1
    Y-L

    Y-L Light Load Member

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    Oct 1, 2013
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    Hello
    A question for the pros and anyone who knows...
    What’s the difference between the davco 384 and 382??
    Also my fuel stays below the collar barely goes up one inch after 8-9k miles.
    The other day I added some additive strait to the fuel filter and truck ran a lot better.
    Any help would be great.
    Thanks
     
    Y-L, Sep 1, 2020
    Y-L, Sep 1, 2020
    #1
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  3. Sep 4, 2020 #2
    Snaponfan1

    Snaponfan1 Bobtail Member

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    Oct 22, 2018
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    Think the 384 is rated for Biodiesel? Davcos website is excellent for info. The Davco level goes higher as the filter clogs up, normal operation. Assuming you dont have any other issues like restrictions in return.
     
    Snaponfan1, Sep 4, 2020
    Snaponfan1, Sep 4, 2020
    #2
    Y-L Thanks this.
  4. Sep 5, 2020 #3
    Y-L

    Y-L Light Load Member

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    Oct 1, 2013
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    Thanks for the reply
    Just low power and right now at 6000 miles it’s not at the top of the collar. Fuel can’t be that clean.
    Some one told me injector seal maybe.
     
    Y-L, Sep 5, 2020
    Y-L, Sep 5, 2020
    #3
  5. Sep 5, 2020 #4
    daf105paccar

    daf105paccar Road Train Member

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    Or algae.
     
    daf105paccar, Sep 5, 2020
    daf105paccar, Sep 5, 2020
    #4
    Y-L Thanks this.
  7. Sep 7, 2020 #5
    baha

    baha Road Train Member

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    Did you replace the lower o/ring under the filter last time filter was changed?
     
    baha, Sep 7, 2020
    baha, Sep 7, 2020
    #5
    Y-L Thanks this.
  8. Sep 8, 2020 #6
    Y-L

    Y-L Light Load Member

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    Oct 1, 2013
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    Yes..
     
    Y-L, Sep 8, 2020
    Y-L, Sep 8, 2020
    #6
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