DEF Issues
I drove a RAM 2500 diesel for 12 years until I upgraded to a pre-owned 2014 3500 diesel earlier this year. I knew nothing about DEF when I bought the "new" truck in March. My first introduction to D...
Forum Discussion
FishOnOne wrote:
Perhaps you did explain it but I'm fully aware how these systems work and the problems they have. Having said that, my '12 uses more EGR than my 05 Powerstroke, but the fix to the sticking vains was a simple one and that was to cycle them while the truck is idling. I can actually here it occurring on my '12 since the engine idles so quite.
The Cummins VGT vanes cycle as well, and have even before SCR/DEF. Especially when the engine is cold since closing the sliding nozzle causes back pressure which causes the engine to warm up quicker. However, it was the addition of SCR/DEF system that made the made the soot clogging the sliding nozzle a thing of the past since less soot was created due to not utilizing the EGR as much.
