Need help identifying a part DD15

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by LoneRanger, 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
     
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  3. 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
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  4. LoneRanger

    LoneRanger Road Train Member

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    When we spoke on you doing EGR cleaning, does it also clean this location?
     
  5. 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)...
     
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  6. Animosus

    Animosus Medium Load Member

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    The detroit manual will call it a "Fuel Doser Injector Valve" or "Hydrocarbon Doser Block" aka 7th Injector.
     
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  7. 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?
     
  8. msh

    msh Light Load Member

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    no problem. it will go to doc face area and eventually will be burned off
     
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  9. 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?
     
  10. 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.
     
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  11. 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..
     
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