Smoke coming from under the cab driver side during regen.
Discussion in 'Ask An Owner Operator' started by kay_ray, Nov 25, 2020.
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So smoking during a regenmeans the DOC is not working efficiently. The DOC could be plugged, dirty, or simply worn out and needs replacement. A faulty injector could also be to blame due to improper spray pattern or volume. First step is to remove and clean, (or just replace) the doser injector.
Siinman, 77fib77, kay_ray and 1 other person Thank this. -
Was the wind blowing and blowing exhaust smoke back under truck?. assuming you have a weed burner exhaust. If wind not blowing you may have a clamp on exhaust leaking or a hole. But looks like lots of moisture on the undercarriage sure it wasn’t just water vapor
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77fib77 Thanks this.
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flood Thanks this.
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It was a blocked/clogged DEF filter
the exhaust backfilled to the turbo where the turbo and flextube metSiinman Thanks this. -
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It can clog and make the smoke backfill to the turbo if it clogs up enough.
Thats what happened to mine. -
Exhaust leak. Even if the DPF is severely restricted the only way exhaust is getting out of the pipe is if there's a leak. If the DPF is plugged that badly that it'll push that much exhaust out of the tiniest of leaks, you're likely going to feel a huge loss of power.
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