N14 two injectors in two weeks?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by JakeBrakeChampion, Nov 23, 2011.

  1. JakeBrakeChampion

    JakeBrakeChampion Light Load Member

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    Apr 14, 2011
    Pennsylvania
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    Last monday i started my truck and about 15 mins later got a check engine. Made it a few miles down the road before it started breakin up real bad and pourin white smoke. Mech put a #3 inj in it and it cleared the check engine light and ran perfect. A week goes by and same problem. Get 20 mins down the highway check engine light comes on and 15 mins later starts breakin up and pourin white smoke. I limped it to a peterbilt dealer and they said they narrowed it down to a #2 replaced it and said it ran worse? Now they are saying the code is a bad ECM and that the leads on the 2 were frayed and shorted the ecm out? Is this possible or is it likly another injector that bad and wasnt the #2. Also The truck was rebuilt in july. 3 reman cummins injectors were put in 3 were re used. The number 3 that was replaced turned out to be a bad solenoid on one of the remans that was just replaced. Any help please
     
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  3. Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    Sounds like an electrical issue. What code keeps popping up? ECMs are pretty tough, we replace them only as a last resort. We try to have or borrow a test ECM and let a customer try it for a run to see if in fact it really is an ECM or a wiring issue.
     
  4. little cat 500

    little cat 500 Road Train Member

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    1,100
    Jan 17, 2010
    Abbottstown PA
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    my brother had the same problem couple weeks ago #injector went had it fixed was running fine then the next week same thing told him this time it was a bad ecm so he took it to another place and they found #4 injector bad still running good now hope this help's id say injector myself his is a n14 set at 525 1999
     
  5. blanco

    blanco Road Train Member

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    Nov 20, 2009
    Gwinnett County, GA
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    N14 do go thru injectors a little quicker when one does go bad. I had the same thing. Number 1 one week and 2 months later #6 injector went bad. I replaced both myself and that was 2 years ago. I bought a good core injector from craigslist and have at the shop to have our mechanic run and buy one whilst the truck makes it to our shop.

    Another gent at our yard keeps one in stock and changes them out in rotation every year. So in 6 years he has all new injectors. Says it has never failed him. He also carries a torque multiplies to change tires himself. Kinda a do it yourself type of guy.
     
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