Paccar MX Injector Spill Valve #2?

Paccar engine is very sensitive to plugging fuel filters, be sure you have the right micron rated filters. They also do not like bio diesel. I burn nothing but ulsd in my paccar and notice a decline in performance with bio fuel.
When was dpf filter cleaned last?.
My paccar has 899,870 mi on it. I also have an apu.
Every 200k perform overhead, clean dpf, change def filter, clean egr valve, doser, flush egr cooler. Also change poost psi sensor. Paccar now recommends changing sensor everytime dpf filter baked. Do to soot and carbon plugging sensor. Also atmospheric psi sensor gets coated with soot will not compensate for changes in altitude properly. My mx13 is a 13 model year. So sensors locations have changed.

 

It will cost you for everything i mentioned in previous post around 2200.00. I do mine however, I would not recommend unless you are very mechanically inclined. Changing sensors is something you can do yourself. Google sensor location for mx13 2013 and a pdf file should show up

 

Dpf filter will have to be baked. Take to dealer they will let you know if filter is plugged. Also have them do a ride along with laptop connected. Hopefully with a loaded trailer to replicate the issue. That way they can take a snap shot of all the engines sensors. And make a well informed diagnosis

 

Hopefully your not idling the engine much as idling is very hard on after treatment system

 

Good luck with repairs hope it's not to big of a hit

 

So I have a 2013 KW T660 Paccar 455 13spd auto. I idle quite a bit, because I don't have a unit. Would it be wise to sacrifice what little extra fuel I'd use idling the truck up at night with the cruise controls or not? I've been told good and bad....