What would cause so much smoke to coke from the exhaust like this?

Discussion in 'Questions To Truckers From The General Public' started by Nick209, Nov 18, 2022.

  1. Nick209

    Nick209 Bobtail Member

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    All of the sudden this Peterbilt just started pouring massive amounts of smoke through its exhaust. The driver just put his hazards on and kept going. He didn’t appear to be in any rush to stop the truck, so I’m curious, is this a devastating sight to have in your own truck? It reminds me of when a car finally blows a head gasket, and white smoke comes from the exhaust, but not nearly as much

    https://youtube.com/shorts/ZiXTEG0Rzmo?feature=share
     
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  3. Cattleman84

    Cattleman84 Road Train Member

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    Hes a livestock hauler, he ain't going to just hit the shoulder and call roadside assistance... He probably knows of a place to get safely off the road a short ways up the road where he can fix the problem, which is probably a blown turbo.
     
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  4. D.Tibbitt

    D.Tibbitt Road Train Member

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    Truck just doing a regen
     
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  5. Cattleman84

    Cattleman84 Road Train Member

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    Lol... That was my first thought too, until I saw the rig.
     
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  6. D.Tibbitt

    D.Tibbitt Road Train Member

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    Still gots a def tank of the side of the truck. Who knows if it just for looks tho.
     
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  7. Cattleman84

    Cattleman84 Road Train Member

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    True. We have a few trucks that have DEF tanks that are just for looks.
     
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  8. AModelCat

    AModelCat Road Train Member

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    Just did a blown turbo on a hoe with all that fancy emissions junk on it, smoked heavy white smoke just like that.
     
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  9. D.Tibbitt

    D.Tibbitt Road Train Member

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    I imagine all the emissions junk gets plugged up pretty good from that .. Did you have to replace/clean all of that as well?
     
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  10. AModelCat

    AModelCat Road Train Member

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    In addition to turbos I ended up having to replace the whole emissions box since its a sealed unit. Oil was actually blowing out the exhaust and down the side of the machine.

    Believe it or not it actually idled pretty good for having a turbo with a detached turbine wheel. It had the twins on it so the larger one was probably still doing its whistle stuff lol.
     
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  11. justcarhaulin

    justcarhaulin Light Load Member

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    My truck (peterbilt 389) does that once in a while after running thru stop and go traffic. Soot accumulates then it's burned off once you are at highway speed hence the white smoke. A warning that shows high exhaust temperature will appear on the dash. Peterbilt recommended we drive under a heavy load to burn off all the soot. That's the price we pay for having the new Def equipped engines.
     
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