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DD15 Fuel Filters

Discussion in 'Freightliner Forum' started by Shadetree Trkr, Sep 8, 2015.

  1. Sep 8, 2015 #1
    Shadetree Trkr

    Shadetree Trkr Bobtail Member

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    Wondered if anyone has ever changed the fuel filters on the DD15 themselves. I've changed the fuel filter on the frame under the cover. Had an issue with a T/A improperly replacing the water separator filter when I first got the truck. Since then, I only change them at the dealership. Speedco gave me the filters when I had the service done last. So I was thinking of giving it a go. Can't get mad at myself if I mess it up.:D
     
    Shadetree Trkr, Sep 8, 2015
    Shadetree Trkr, Sep 8, 2015
    #1
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  3. Sep 8, 2015 #2
    skellr

    skellr Road Train Member

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    Not as easy as a spin on but still quick. Just take care not to get a kink in the o-rings.

    Edit: You'll need a 36mm socket and torque wrench.
     
    skellr, Sep 8, 2015
    skellr, Sep 8, 2015
    #2
    Shadetree Trkr Thanks this.
  4. Sep 8, 2015 #3
    icsheeple

    icsheeple Trailing the Herd

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    If it's a davco, super simple, but there is a proper procedure and special tool needed.
     
    icsheeple, Sep 8, 2015
    icsheeple, Sep 8, 2015
    #3
  5. Sep 9, 2015 #4
    mhyn

    mhyn Road Train Member

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    I have changed both. the davco 482 and three filters on engine.
     
    mhyn, Sep 9, 2015
    mhyn, Sep 9, 2015
    #4
  7. Sep 9, 2015 #5
    mhyn

    mhyn Road Train Member

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    use lubrication on o-rings. it is provided in filter kit box. use hand pump about 2-3 minute until you feel its hard to pump.
     
    Last edited: Sep 9, 2015
    mhyn, Sep 9, 2015
    mhyn, Sep 9, 2015
    #5
    Shadetree Trkr Thanks this.
  8. Sep 9, 2015 #6
    Shadetree Trkr

    Shadetree Trkr Bobtail Member

    15
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    Sep 7, 2012
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    A kink in the O-ring was the problem the "mechanics" at T/A caused. Couldn't get the truck to start due to air in the fuel system. Dealership discovered the problem 3 days later. Cluster f--- all the way around. Thanks for the info.
     
    Shadetree Trkr, Sep 9, 2015
    Shadetree Trkr, Sep 9, 2015
    #6
    icsheeple Thanks this.
  9. Sep 18, 2015 #7
    Star4900

    Star4900 Medium Load Member

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    Mar 16, 2015
    Northern Ontario
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    DO NOT CHANGE THEM AND THE OIL FILTER AT THE SAME TIME also. There was a service bulletin about this after dealerships blew up a few Detroit and Mercedes due to having to crank them over so long to pick up fuel with no oil pressure.

    My DD15 has to run quite a while at road RPM before it will start normally again after the fuel filter.

    So do them one at a time running the truck in between.
     
    Star4900, Sep 18, 2015
    Star4900, Sep 18, 2015
    #7
  10. Sep 18, 2015 #8
    icsheeple

    icsheeple Trailing the Herd

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    On my davco and bypass filter. It's always important to not twist the bowls. I learned the hard way. Lost 6 gallons on the highway after a bypass oil filter changed when I kinked the gasket. Another time I was getting bubbles on my davco from twisting the see through bubble, bowl thing instead of the threaded collar. Doh!
     
    icsheeple, Sep 18, 2015
    icsheeple, Sep 18, 2015
    #8
  11. Nov 22, 2015 #9
    Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Which T/A was that?
     
    Dave_in_AZ, Nov 22, 2015
    Dave_in_AZ, Nov 22, 2015
    #9
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