I was out plowing yesterday and lost power blowing smoke all over the place. The truck then cleared out and ran great the rest of the day.
I turned the truck off, had dinner and went out to leave. Got down the road about 3 miles and it did it again. It finally threw a code. It showed the P0404. EGR. I took the egr out and cleaned it, cleared the code and beat the snot out of the truck to try to clear the rest out. Well, today (not plowing) it did it again.
Yesterday morning before heading out, I tuned the truck back to stock. Should I clean the egr again or try my xstreet tune in it?
I also went to the dealer and they said it is called coking? They suggested to clean out the entire intake which they would gladly do for $499 including an oil change.