cummins fault code 2372

Discussion in 'Trucks [ Eighteen Wheelers ]' started by allbusiness, Apr 20, 2015.

  1. allbusiness

    allbusiness Bobtail Member

    18
    4
    Feb 16, 2013
    St.Catharines, On Canada
    0
    I'm hoping that someone out there can help with my problem. I have an '06 pete 379 with an isx 475, it intermitant problem where it throws a 2372 code and derates engine power. It may last an hour or so, and when I shut the engine off and re fire, the check engine light goes off and all is fine. I have taken it in to Peterbilt and had the code read on monday the 13th and the 2372 code came up restricted fuel filter, so i had them change both filters and it was fine until friday when it started acting up and throwing the code again. So today which is monday i went back to peterbilt to have the code read and it was the same one. Has anybody encountered this same problem and what was the outcome?

    Thanks for reading and I hope to hear from someone before Peterbilt sucks all of my money from my pockets..:biggrin_25516:
     
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  3. Heavyd

    Heavyd Road Train Member

    7,625
    6,023
    Feb 4, 2009
    0
    The engine is detecting low fuel pressure. Fuel pressure testing needs to be done. If changing the filter temporarily fixes this, I would say your fuel is contaminated. Other than that it could be bad or sticking fuel shut off solenoid, or restricted fuel intake, or even a bad pressure sensor.
     
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  4. allbusiness

    allbusiness Bobtail Member

    18
    4
    Feb 16, 2013
    St.Catharines, On Canada
    0
    Thanks Heavyd, I am going to try all of your ideas. Hopefully it's just some bad fuel, but i'll change the pressure sensor and then have a look at the fuel shut off solenoid. Thanks for taking the time.
     
    Heavyd Thanks this.
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