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Cat C-15 6NZ starting issue

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Galves10, Feb 29, 2020.

  1. Feb 29, 2020 #1
    Galves10

    Galves10 Bobtail Member

    1
    0
    Feb 25, 2020
    0
    I’m having an issue with my c15 6nz engine.
    Engine only turns on when using starting fluid. Then after that if runs great, but if I turn it off and try turning it back on it will only crank but not start until I spray it with starting fluid again.

    could it be a sensor? And if you which one
     
    Galves10, Feb 29, 2020
    Galves10, Feb 29, 2020
    #1
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  3. Feb 29, 2020 #2
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    Check valve in filter head. Takes a 1" wrench .
    Take out and replace with a new one.

    Don't mistake it for the pressure regulator as they look the same and take the same 1" wrench to take out
     
    swaan, Feb 29, 2020
    swaan, Feb 29, 2020
    #2
    spsauerland, SAR and pushbroom Thank this.
  4. Mar 1, 2020 #3
    Chubby Fly

    Chubby Fly Medium Load Member

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    796
    Nov 25, 2019
    0
    possible causes. FUel regulator as mentioned, fuel primer bad diaghram, bad secondary housing, bad fuel pump not holding pressure and bleeding back to tank when truck shuts off.
     
    Chubby Fly, Mar 1, 2020
    Chubby Fly, Mar 1, 2020
    #3
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