N14 Celect fuel check valve

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mile marker 27, Jun 25, 2023.

  1. mile marker 27

    mile marker 27 Road Train Member

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    Yes sir.
     
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  3. mile marker 27

    mile marker 27 Road Train Member

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    Got a few loads to haul this morning and then I’m gonna pull a couple of these lines off. I pulled fuel, with another line directly from the tank and a bad line is my problem. More times than not, with the symptoms I’m having, is the bad line(s) between the fuel filter and pump? Replacing the one between the filter and cooling plate is simple and the one from the cooling plate to the pump is easy as well. Any certain type of line I should replace these with?
     
  4. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Could be anywhere from the pump back., and possibly the filter head. I find most issues from the tanks to the filter head. A PITA

    Any good Stratoflex style hose will work.
     
    mile marker 27 Thanks this.
  5. blairandgretchen

    blairandgretchen Road Train Member

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    Would a hairline crack in the filter base cause this?
     
  6. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Absolutely
     
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