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Need help. 2007 International 8600, hard starting.

Discussion in 'Trucks [ Eighteen Wheelers ]' started by SyracuseGirl, May 18, 2016.

Page 2 of 2
  1. May 19, 2016 #11
    boneebone

    boneebone Road Train Member

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    Mar 13, 2009
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    The Water Fuel Separator also acts as the Fuel Filter too.
     
    boneebone, May 19, 2016
    boneebone, May 19, 2016
    #11
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  3. May 19, 2016 #12
    Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
    South Carolina
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    Just had an identical truck with same issue. Cummins ISM with Daveco Fuel Bowl. Replaced the check valve in the fuel bowl. Part #DVC 101132
    Not every problem is the same though.
    You did not post important INFO. Engine type
     
    Smellfunny, May 19, 2016
    Smellfunny, May 19, 2016
    #12
    Heavyd Thanks this.
  4. May 19, 2016 #14
    SyracuseGirl

    SyracuseGirl Bobtail Member

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    May 18, 2016
    0

    Same Cummins ISM
     
    SyracuseGirl, May 19, 2016
    SyracuseGirl, May 19, 2016
    #14
  5. May 19, 2016 #14
    SyracuseGirl

    SyracuseGirl Bobtail Member

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    May 18, 2016
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    The motor is a Cummins ISM

    The check valve fixed your problem?
     
    SyracuseGirl, May 19, 2016
    SyracuseGirl, May 19, 2016
    #14
  7. May 19, 2016 #15
    Smellfunny

    Smellfunny Road Train Member

    1,445
    967
    Jan 28, 2012
    South Carolina
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    Yes With the check valve not holding prime it will cause hard starts and poor suction of fuel. This would be where I would start for sure. Cheap and easy.
     
    Smellfunny, May 19, 2016
    Smellfunny, May 19, 2016
    #15
  8. May 19, 2016 #16
    SyracuseGirl

    SyracuseGirl Bobtail Member

    9
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    May 18, 2016
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    Thanks. I'll start there.
     
    SyracuseGirl, May 19, 2016
    SyracuseGirl, May 19, 2016
    #16
  9. May 19, 2016 #17
    BigPerm

    BigPerm Medium Load Member

    511
    304
    Sep 4, 2012
    Fron Calif, NM, NV, & now TX.
    0
    Right on...Davco filters are ready for replacement when normally "full".
    If that doesn't fix, check to see if there is a starting relay signaling the computer to fire the injectors. Prolly not tho'.
    Buy the Davco wrench too. Seem to remember they market a kit w/extra seals & check valve (s).
     
    BigPerm, May 19, 2016
    BigPerm, May 19, 2016
    #17
  10. May 26, 2016 #18
    SyracuseGirl

    SyracuseGirl Bobtail Member

    9
    0
    May 18, 2016
    0
    Thank you. Replaced the Check Valve. The old and new were different sizes. When I changed the first filter is when the truck started not starting without help. The ball must have changed positions enough not to create a seal. The new part worked great. It now starts on its own again. Still cranks a little longer than I would like, but at least it is firing up. Thank you for your help!
     
    SyracuseGirl, May 26, 2016
    SyracuseGirl, May 26, 2016
    #18
  11. May 26, 2016 #19
    BigPerm

    BigPerm Medium Load Member

    511
    304
    Sep 4, 2012
    Fron Calif, NM, NV, & now TX.
    0
    Right on....everyone was confused when the Davco came out. Glad it's fixed.
     
    BigPerm, May 26, 2016
    BigPerm, May 26, 2016
    #19
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