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C15 Caterpillar puffin white smoke

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by peterbilt DAve, Dec 24, 2019.

Page 3 of 4
  1. Dec 31, 2019 #21
    DieselTech_Aus

    DieselTech_Aus Light Load Member

    274
    309
    Dec 20, 2017
    WA
    0
    If top cup seals Leak you’ll have diesel in the coolant.

    If bottom seal leaks it will pressurize the cooling system with combustion gasses
     
    DieselTech_Aus, Dec 31, 2019
    DieselTech_Aus, Dec 31, 2019
    #21
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  3. Jan 12, 2020 #22
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    Well so far I've changed all injectors, injector cups,head gasket,new turbo,changed ecm,fuel filters, air filters, still didnt fix the problem
     
    peterbilt DAve, Jan 12, 2020
    peterbilt DAve, Jan 12, 2020
    #22
  4. Jan 12, 2020 #23
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    The stock mbn cal in the ecm is garbage. Those engines are known to run hot and have poor fuel milage because of retarded timing.
    If it was me I'd get a performance tune put into the ECM . Sounds like the injection timing is way off.
     
    swaan, Jan 12, 2020
    swaan, Jan 12, 2020
    #23
    SAR Thanks this.
  5. Jan 12, 2020 #24
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
     
    peterbilt DAve, Jan 12, 2020
    peterbilt DAve, Jan 12, 2020
    #24
  7. Jan 12, 2020 #25
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    I have a tune done by diesel freaks and now just put big berg warner turbo on it still no change
     
    peterbilt DAve, Jan 12, 2020
    peterbilt DAve, Jan 12, 2020
    #25
  8. Jan 31, 2020 #26
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    I changed atmospheric sensor and all the other ones ,intake pressure sensor and the other sensor in head fuel temp sensor ,the popping has stopped and the white smoke has cut way down but truck still spudders at cold when pushing gas pedal to 1400
     
    peterbilt DAve, Jan 31, 2020
    peterbilt DAve, Jan 31, 2020
    #26
  9. Jan 31, 2020 #27
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    It spudders at 1400 or 1500 but when reving higher like 2100 rpm it straightens out ,let off gas down to 1400 its spudders again, but allways has a miss ,when truck gets hot it takes gas pedal no problem but still has a slight miss at idle when warmed up still not 100% even when hot but runs decent
     
    peterbilt DAve, Jan 31, 2020
    peterbilt DAve, Jan 31, 2020
    #27
  10. Feb 1, 2020 #28
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    What's would that cost me ?
     
    peterbilt DAve, Feb 1, 2020
    peterbilt DAve, Feb 1, 2020
    #28
  11. Feb 1, 2020 #29
    Chubby Fly

    Chubby Fly Medium Load Member

    569
    797
    Nov 25, 2019
    0
    Dave,
    You keep throwing all this money, which most be thousands and thousands of dollars, into chasing this problem and still back at square one. Stop throwing parts at it. You said in your first post the truck ran fine when it was warmed up. Should have left well enough alone in my opinion. By the time you are done it sounds like you will have rebuilt the whole motor and still not find the gremlin that is cursing your truck.
     
    Chubby Fly, Feb 1, 2020
    Chubby Fly, Feb 1, 2020
    #29
  12. Feb 1, 2020 #30
    peterbilt DAve

    peterbilt DAve Bobtail Member

    20
    1
    Nov 15, 2015
    0
    Isn't that injector seats are same thing as cups?
     
    peterbilt DAve, Feb 1, 2020
    peterbilt DAve, Feb 1, 2020
    #30
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