How long is the Detroit One-Box supposed to last?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by PE_T, May 23, 2020.

  1. PE_T

    PE_T Road Train Member

    I just got told by a Freightliner dealer that my one-box needs replacement after days of troubleshooting the problem. The part costs around 9k. I was told the one-box usually lasts around 600k miles. My truck has over 800k. What are your thoughts?

    Edit—

    Well, the cost is even higher than 9k. The total is now $13,400 (parts only). I guess they want to replace more than just the one-box. See images.
     

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    Last edited: May 23, 2020
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  3. boneebone

    boneebone Road Train Member

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    Unfortunately they eventually need replacing, if you got 800k miles out of the original one, you got your money's worth.

    Now it's time to pony up $9k dollars.
     
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  4. aaronpeterbilt3787

    aaronpeterbilt3787 Medium Load Member

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    I’m currently dealing on a new cascadia. $7700 for ew4 warranty, $7100 for tc4 warranty. Covered to 960000 km. Or 576000 miles. Good investment in my books.
     
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  5. sealevel

    sealevel Road Train Member

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    800,000 out of a Detroit one box is rare. You did well. Your next 9,000 should be spent on a quality job getting rid of it for good.
     
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  6. aaronpeterbilt3787

    aaronpeterbilt3787 Medium Load Member

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    I use to think that too.....till I did it. Worst thing I’ve ever done.
     
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  7. lester

    lester Road Train Member

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    Would you like to share with the rest of the class
     
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  8. aaronpeterbilt3787

    aaronpeterbilt3787 Medium Load Member

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    Nope.....apparently that topic of convo is a no no round these parts.
     
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  9. Brandt

    Brandt Road Train Member

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    I had One Box go bad at about 630,000 miles back when I had my own truck. It was going to be $12,000 to replace with test they already had into my truck. Some else was just talking about $19,000 to replace once on a different forum the other day.

    Today they have way to clean the entire emissions system. I wonder if doing that at every 250,000 miles would save the One Box. Diesel Force cleaning is a foam that clean all the soot out. Their is a fuel additive that also burns more of the soot so it never get in the emissions system. The company Pittsburgh Power is going that way of cleaning the emissions system and keeping it working like it was new. They seem to be having success go that way
     
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  10. AModelCat

    AModelCat Road Train Member

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    I highly doubt that Diesel Force stuff is going to do anything for the DPF. Soot normally accumulates and is catalyzed off during a regen. Its the ASH that accumulates over time and is incombustible. It resembles pencil lead and that is the reason the DPF needs to be cleaned/replaced. The ash takes away capacity from the DPF and that's why regenerations are required more frequently towards the end of the DPF's service life.
     
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  11. Brandt

    Brandt Road Train Member

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    The Diesel Force cleaning would clean all the sensors and soot in the engine. Not sure how much cleaning it has on the DPF. The One Box seems to fail because the DOC filter go bad and can't be replaced. That's what happened to mine in a 2011 truck.

    Pittsburgh Power has a fuel additive that seem to actually work.

     
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