Need help identifying a part DD15

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by LoneRanger, Jan 21, 2022.

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  1. Jan 21, 2022 #1
    LoneRanger

    LoneRanger Road Train Member

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    2013 DD15 need help identifying this part. What is it called?


    D7FD2F0C-0393-497F-965D-CF1500C664BB.jpeg
     
    LoneRanger, Jan 21, 2022
    LoneRanger, Jan 21, 2022
    #1
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  3. Jan 21, 2022 #2
    Goodysnap

    Goodysnap Road Train Member

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    As you know I’m no Detroit guy. By the location and appearance I would say that is your 7th injector or also known as the DPF fuel doser/ injector.
     
    Last edited: Jan 21, 2022
    Goodysnap, Jan 21, 2022
    Goodysnap, Jan 21, 2022
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  4. Jan 21, 2022 #3
    LoneRanger

    LoneRanger Road Train Member

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    When we spoke on you doing EGR cleaning, does it also clean this location?
     
    LoneRanger, Jan 21, 2022
    LoneRanger, Jan 21, 2022
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  5. Jan 23, 2022 #4
    msh

    msh Light Load Member

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    That injector must be removed and the hole must be cleaned every 6 months... otherwise regen temp is going to be low and there will be high *fuel pressure in hydrocarbon injection line* code( sorry i forgot the numeric code)...
     
    msh, Jan 23, 2022
    msh, Jan 23, 2022
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  7. Jan 23, 2022 #5
    Animosus

    Animosus Heavy Load Member

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    The detroit manual will call it a "Fuel Doser Injector Valve" or "Hydrocarbon Doser Block" aka 7th Injector.
     
    Animosus, Jan 23, 2022
    Animosus, Jan 23, 2022
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  8. Jan 23, 2022 #6
    LoneRanger

    LoneRanger Road Train Member

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    no codes yet, but that’s the next cleaning I’ll be doing.

    do you happen to know if the chunks of carbon fall into the exhaust pipe it’s going to be a problem? Or will a regen fix it?
     
    LoneRanger, Jan 23, 2022
    LoneRanger, Jan 23, 2022
    #6
  9. Jan 23, 2022 #7
    msh

    msh Light Load Member

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    no problem. it will go to doc face area and eventually will be burned off
     
    msh, Jan 23, 2022
    msh, Jan 23, 2022
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  10. Jan 23, 2022 #8
    LoneRanger

    LoneRanger Road Train Member

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    Any special tools to remove the injector? And jam a bolt down to clean it like in a YouTube video I’ve seen. Or should I remove the whole assembly to clean it properly?
     
    LoneRanger, Jan 23, 2022
    LoneRanger, Jan 23, 2022
    #8
  11. Jan 23, 2022 #9
    Antinomian

    Antinomian Road Train Member

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    Regen will fix it. I use an .40 cal gun barrel brush to clean out the orifice. A new doser is about $185. I've always just replaced mine when necessary. SPN 3556 is the code you get when a regen fails because it can't generate enough heat. A clogged doser causes the fuel to stream out instead of spray as a fog.
     
    Antinomian, Jan 23, 2022
    Antinomian, Jan 23, 2022
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  12. Jan 23, 2022 #10
    msh

    msh Light Load Member

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    no special tools needed. 10mm socket with extension 12 mm and 14mm wrenches and gun brush..
     
    msh, Jan 23, 2022
    msh, Jan 23, 2022
    #10
    LoneRanger Thanks this.
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