Cummins n14

Discussion in 'Ask An Owner Operator' started by Fld1201994, Jul 22, 2021.

  1. Fld1201994

    Fld1201994 Bobtail Member

    26
    14
    Jan 25, 2020
    0
    Hello fellas, I have a Cummins n14 that when I go to start it up it’s start but then after 2 to 3 seconds it dies , then I go ahead and try again to started up and it cranks for a bit then starts liked if I had sprayed some started fluid and stay on with no problem …. Now a few days ago it started acting like if it was running out of fuel with a lot of white smoke and it wouldn’t rev up but that only lasted like 40 seconds to a minutes at the most then ran fine afterwards , any thoughts? Thanks for your time fellas
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Brettj3876

    Brettj3876 Road Train Member

    8,105
    33,515
    Nov 18, 2014
    Canceling cancel culture/CCC
    0
    restriction in the fuel somewhere?
     
    Dino soar and Fld1201994 Thank this.
  4. sbaumann14

    sbaumann14 Road Train Member

    1,015
    888
    Sep 1, 2010
    Rhinelander, WI
    0
    Do u have the Davco filter? Sounds like ur loosing prime. There’s a check ball in the bottom of filter housing that keeps the fuel from running back into ur tank when u sit. They wear out
     
    Fld1201994 Thanks this.
  5. Fld1201994

    Fld1201994 Bobtail Member

    26
    14
    Jan 25, 2020
    0
    The filter housing that I have its connected straight to fuel pump with the fs1000 fuel filter , I replaced the check valve that goes on the ecm cooling plate liked 2 years ago , I’ll go ahead and tried replacing it again.
     
  6. bad-luck

    bad-luck Road Train Member

    1,898
    2,797
    Nov 16, 2013
    Baltimore, Maryland
    0
    Change the fuel filter first. Go from there.
     
    Fld1201994 Thanks this.
  7. Dino soar

    Dino soar Road Train Member

    3,663
    12,254
    Dec 8, 2017
    0
    I'm not saying this is your problem but on older trucks sometimes the fuel lines themselves can internally collapse.

    Sometimes that can happen in such a way that as the fuel really starts to get flowing it shuts itself off.

    I would try running fuel directly out of a bucket to the pump to isolate whether you have a problem before the pump or after the pump.

    That's how I do it on the big cam anyway. I assume you can do the same thing on the electronic engine.
     
    Last edited: Jul 22, 2021
    spindrift, jamespmack and Fld1201994 Thank this.
  8. Fld1201994

    Fld1201994 Bobtail Member

    26
    14
    Jan 25, 2020
    0
    I just replaced the filter and it’s the same
     
  9. Fld1201994

    Fld1201994 Bobtail Member

    26
    14
    Jan 25, 2020
    0
    That is what I was thinking, because I might be wrong but I believed that the fuel lines on the truck there original
     
    jamespmack Thanks this.
  10. abyliks

    abyliks Road Train Member

    1,367
    2,237
    May 2, 2010
    ludlow MA
    0
    Cam sensor could be on its way out to, I carry a spare under my bunk
     
    jsnell, ChevyCam and Fld1201994 Thank this.
  11. bad-luck

    bad-luck Road Train Member

    1,898
    2,797
    Nov 16, 2013
    Baltimore, Maryland
    0
    Ok, it sounds like you may have a cracked fuel line, and are sucking air.
     
    Fld1201994 Thanks this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted