ISX CM 871 intermittent smoke

[Waterloo]

I'm thinking doser too... I know when I replaced mine, it was shot. And the lines can be a bit fragile too. There was a core charge of $55, and the doser had been redesigned from the one I had taken off. The doser is located under and behind the turbo. You DO NOT have to remove the turbo to get to it. It was not to bad to get too.

If it is bad, and leaking fuel, I would imagine the DPF DOC faces are a mess. I had fuel in mine... No idea if they can be saved if they are loaded with diesel, mine cracked.

If that is the case, having been through DPF/DOC can issues, might be time to rid yourself of the mandate. At the time, I could not afford new cans at $7000... I had no choice, get rid of the mandate or file for bankruptcy. It was an easy decision at that point... Would I rid myself of the mandate again? Yes, and I would have done it sooner. The bad emissions cost me tens of thousands of dollars in lost revenue due to breakdowns and also the wasted fuel. With mandate, it was 4.5 mpg... After mandate removal, we went to 7 mpg, and this is when fuel was near that $3 - $4 a gallon range. You do the math.

I hope it is nothing serious, brighter minds will chime in, Good LUCK!