white smoke

[Rawze]

(01-06-2017 )scottydogtruck Wrote:  There is coolant going through the doser also.......pressure test the coolant system (Rawze's video comes to mind...)

Just my 2 pennies...

This is true, in fact, every doser I have seen that leaks coolant, you get a slight buildup of it just past the doser in the pipe, and of course, the face of the DPF shows it too.

doser leaking fuel,,.. very little evidence of this sometimes. Best thing to do is pull the doser pipe away from the turbo and crank the truck. See if the doser injector tip gets damp as the truck idles. - I have seen many do this, driver unaware he is loosing fuel and fuel mileage all the time.