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C15 Cat wont start

Discussion in 'Trucks [ Eighteen Wheelers ]' started by silver dollar, Nov 7, 2012.

Page 5 of 5
  1. Nov 6, 2017 #41
    silver dollar

    silver dollar Medium Load Member

    481
    210
    Jan 31, 2009
    Central North Carolina
    0
    That's the way mine was doing. Problem was the check vale on the fuel filter base where the primer pump is. It is a 1" nut screw in from the bottom of the filter base. When it goes bad it will allow fuel to bleed from the injectors. The nut head is all you can see, but it's actually a valve screwed in there. It cost about $50 at Cat and can be change in 5 minutes or less. When you install it, leave it lose and stroke the primer pump until fuel start to flow out. Tighten the valve (do not over tighten) stroke the pump a couple more times. She should fire with out ether.
     
    silver dollar, Nov 6, 2017
    silver dollar, Nov 6, 2017
    #41
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  3. Nov 6, 2017 #41
    bavarian

    bavarian Heavy Load Member

    729
    783
    Feb 13, 2014
    Winnipeg
    0
    Don't let the primer pump open after priming. Always tighten it before starting. It wouldn't be the first one to come apart and you're fxxxxx right at the spot.

    I just ordered a new pump for me. Mine was leaking when I primed the new filter recently. A bit over $200 CAN plus gasket, plus tax.
     
    bavarian, Nov 6, 2017
    bavarian, Nov 6, 2017
    #41
    Oxbow Thanks this.
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  5. Jul 27, 2018 #43
    Rigman2

    Rigman2 Bobtail Member

    1
    0
    Jul 27, 2018
    0
    I have a problem with a 379 pete with a 6nz. I cant get it to start. I replaced the gaskets on the front cover and marked every gear before i pulled them off and put them back exactly the way i took them off. I have at least 70 psi at the fuel filter housing but i cant get any fuel out of the return. I have even pressued the fuel tank to get fuel to the filter. Can somebody give me an idea on what to do.
     
    Rigman2, Jul 27, 2018
    Rigman2, Jul 27, 2018
    #43
  6. Jul 28, 2018 #43
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    Crack the line coming out the back of head at the filter base while cranking the engine. That will get all the air out.
     
    swaan, Jul 28, 2018
    swaan, Jul 28, 2018
    #43
    SAR Thanks this.
  7. Jul 28, 2018 #44
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    Once all the air is out close the line and pump the hand pump. You should get fuel out the return even using the hand pump. It should fire.
     
    swaan, Jul 28, 2018
    swaan, Jul 28, 2018
    #44
    SAR Thanks this.
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