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99 peterbilt with red top n14. engine out of power

Discussion in 'Peterbilt Forum' started by trucker359, Nov 6, 2013.

  1. Nov 6, 2013 #1
    trucker359

    trucker359 Bobtail Member

    11
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    Sep 15, 2013
    0
    Truck was running perfect and suddenly start loosing power and looks like running with 5 pistons. Check every thing and find 2 diesel hoses sucking air, replace them and now won't start. The engine runs when fuel pump sucks the fuel from the filter and then engine dies. Any body have any ideas?
     
    trucker359, Nov 6, 2013
    trucker359, Nov 6, 2013
    #1
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  3. Nov 6, 2013 #2
    baha

    baha Road Train Member

    4,137
    2,836
    Jul 25, 2013
    ga
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    ck if it has working ele. transfer pump at fuel tank,
     
    baha, Nov 6, 2013
    baha, Nov 6, 2013
    #2
  4. Nov 7, 2013 #3
    trucker359

    trucker359 Bobtail Member

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    Sep 15, 2013
    0
    I don't think it has a transfer pump at fuel tank, the only pump it have is at the engine.
     
    trucker359, Nov 7, 2013
    trucker359, Nov 7, 2013
    #3
  5. Nov 7, 2013 #4
    JohnP3

    JohnP3 Road Train Member

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    Feb 21, 2010
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    Put a vacuum guage on the compucheck fitting after the fuel filter but before the pump, you have a cooler plate for the ECM and they do plug, I have replaced quite a few, they are very expensive. You have changed the filter, even a new filter will fail, twist inside the can.
    Check the fuel preasure, you need 75lbs going quickly to 140 to start, and a good engine positioning sensor.
    The red valve covers are an option they mean nothing, To cut a way down on the noise of the engine, bungee cord a 3 ft piece of radiator hose to the tops of the valve covers. It is a great engine.
    Just a thought!
     
    JohnP3, Nov 7, 2013
    JohnP3, Nov 7, 2013
    #4
    trucker359 Thanks this.
  7. Nov 8, 2013 #5
    trucker359

    trucker359 Bobtail Member

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    Sep 15, 2013
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    I will certainly will check that plate behind the ecm and let you know.
     
    trucker359, Nov 8, 2013
    trucker359, Nov 8, 2013
    #5
  8. Nov 19, 2013 #6
    bringthenoise

    bringthenoise Bobtail Member

    17
    3
    Oct 18, 2013
    0
    Ive had that problem. Had a friend hold an air hose with a rag over the mouth of the tank and charge it with air while i started it. Worked for me. Hopefully you might have the same simple luck
     
    bringthenoise, Nov 19, 2013
    bringthenoise, Nov 19, 2013
    #6
    trucker359 Thanks this.
  9. Nov 20, 2013 #7
    trucker359

    trucker359 Bobtail Member

    11
    0
    Sep 15, 2013
    0
    Thank you all for the help, it had 3 fuel hoses semipluged , the cooling plate behind the ecm pluged and as a result of all of this a #6 injector damaged, but with all your ideas I was able to fix it.
     
    trucker359, Nov 20, 2013
    trucker359, Nov 20, 2013
    #7
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