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2018 x15 cummins STACK COVERED IN WHITE

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Brandon0928, Oct 22, 2022.

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  1. Oct 22, 2022 #1
    Brandon0928

    Brandon0928 Light Load Member

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    Have a 2018 579 Peterbilt with x15 cummins. Dual stacks but only hooked up to 1 of them. Got it washed and few hours later I noticed some thick white stuff on it and I’ll post pictures in order. Then another day goes by the stack is turning white at the top and kind of rainbow looking under it. Then I go to Peterbilt to show them and when I got to Peterbilt it started to regen and by the time they came out all the white on the stack was pretty much gone. I do believe I have an exhaust leak at or near the bellow pipes. Would that cause this?
     

    Attached Files:

    Brandon0928, Oct 22, 2022
    Brandon0928, Oct 22, 2022
    #1
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  3. Oct 22, 2022 #2
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    It’s normal. I’ve seen worse.
     
    Diesel Dave, Oct 22, 2022
    Diesel Dave, Oct 22, 2022
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    Concorde and Brandon0928 Thank this.
  4. Oct 22, 2022 #3
    Brandon0928

    Brandon0928 Light Load Member

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    Thanks. I think I would like to have it unhooked from the stack that way the stack doesn’t get so dirty looking
     
    Brandon0928, Oct 22, 2022
    Brandon0928, Oct 22, 2022
    #3
  5. Oct 22, 2022 #4
    Short Fuse EOD

    Short Fuse EOD Road Train Member

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    Just epa mandated cancer. Nothing to look, move on..
     
    Short Fuse EOD, Oct 22, 2022
    Short Fuse EOD, Oct 22, 2022
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  7. Oct 23, 2022 #5
    GYPSY65

    GYPSY65 Road Train Member

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    I have zero knowledge on this but thought I have heard if you have a weed burner exhaust that you can’t change it to stacks without messing up the way it runs
    So reversing that if it’s true might have a similar effect???

    Again. I have no clue but maybe ask that question to some who may know
     
    GYPSY65, Oct 23, 2022
    GYPSY65, Oct 23, 2022
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    Oxbow Thanks this.
  8. Oct 23, 2022 #6
    Brandon0928

    Brandon0928 Light Load Member

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    I’m gunna look more into this. I talked to Peterbilt about it and they said 500$ and I could have it unhooked to make it a weed burner and not ruin the stack. I’m gunna talk with my local shop I use 99% of the time and see what they say. I don’t really want to do anything that will affect the way the truck runs
     
    Brandon0928, Oct 23, 2022
    Brandon0928, Oct 23, 2022
    #6
    GYPSY65 Thanks this.
  9. Oct 23, 2022 #7
    GYPSY65

    GYPSY65 Road Train Member

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    I had a friend who bought a new charger
    Went home. Took a saw to the exhaust to add dual pipes like we did back in the day

    His car never ran right after that but there is a way too do that but it’s not just pipes and mufflers like before

    I had this car with an LS3 vette engine with around 550-600hp and it was done right
    Old school setup with sensors etc where they needed to be

    2E780479-B965-4B84-9625-D603BFCA47AA.jpeg

    FD0AFEB9-1D30-4C1E-A182-3693F2367C3F.jpeg
     
    GYPSY65, Oct 23, 2022
    GYPSY65, Oct 23, 2022
    #7
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  10. Oct 23, 2022 #8
    Brandon0928

    Brandon0928 Light Load Member

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    Beautiful car!!
     
    Brandon0928, Oct 23, 2022
    Brandon0928, Oct 23, 2022
    #8
    Siinman, Oxbow and GYPSY65 Thank this.
  11. Oct 23, 2022 #9
    GYPSY65

    GYPSY65 Road Train Member

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    The kicker is the guy who bought it paid around $80k and gave it to a friend for a military retirement gift

    I simply have the wrong friends
     
    GYPSY65, Oct 23, 2022
    GYPSY65, Oct 23, 2022
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    Siinman and Oxbow Thank this.
  12. Oct 23, 2022 #10
    Brandon0928

    Brandon0928 Light Load Member

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    Got to be in the right place and the right time to make those friends! LOL . Saying that… you got an addresss so I can put myself in the right place for the right time ? hahaha . In all seriousness there’s no price for the guys service. Bless him for not caring about money when giving him a gift for his service. Props to the fella
     
    Brandon0928, Oct 23, 2022
    Brandon0928, Oct 23, 2022
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