Black ash under the Hood

Discussion in 'Ask An Owner Operator' started by tommyfast, May 12, 2021.

  1. tommyfast

    tommyfast Bobtail Member

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    May 12, 2021
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    Hello! I have a 2008 Frieghtliner Century and it suddenly started leaving black ash all over the place under my hood and even getting inside my cab . I’ve checked the whole exhaust system and don’t see any breaks or cracks. It’s gotten bad that I wiped my face and had black particles all over the towel I used . Any help finding what it could be is appreciated.
     
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  3. Farmtractor9900

    Farmtractor9900 Light Load Member

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    Snap the throttle a could of times and watch to see if the black ash is coming out the top of the exhaust stack.:dontknow:
     
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  4. slow.rider

    slow.rider Road Train Member

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    Does it have a DPF system? Could be a bad seal there maybe.
     
  5. Brettj3876

    Brettj3876 Road Train Member

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    I assume you checked the manifold too?

    Bring up the idle to 1800 rpms and take a look
     
    Last edited: May 12, 2021
  6. skallagrime

    skallagrime Heavy Load Member

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    My money is on the manifold, except that that kind of volume (to be entering cab too) it should just be obvious

    Ignore blue tape, was trying to keep some of the stuff i was cleaning out of the block

    Manifold stud gone, turbo started to go

    20210417_125943.jpg
     
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  7. lester

    lester Road Train Member

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    Better park that truck till you find it or you might wake up dead
     
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  8. slow.rider

    slow.rider Road Train Member

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    I thought that happened to me one time, but then I remembered that it was just that I was in Nebraska.

    :confused:
     
  9. Just passing by

    Just passing by Road Train Member

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    When the fan clutch went bad I had tiny little black particles everywhere under the hood. It wasn't ash but could look like it. Just a thought.
     
  10. skallagrime

    skallagrime Heavy Load Member

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    Oooo, good thought. (Filed for future me to discover what thats like in person)
     
  11. Spyro2112

    Spyro2112 Medium Load Member

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    Flang back of turbo
     
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