Went to dinner tonight and the truck was running real strong on the way there, it was a lot of fun. Finished up and started home and as soon as I started it, there was a very noticeable miss. I've noticed a slight miss at idle before, but its always gone away real quick. I knew as soon as I started it that this was different, the whole truck was shaking. No lights were on, and it was fine until the next stop where it was still slightly missing. I started off and it was still fine, but i could feel the miss while driving at lower RPMs in 4th and 5th. The truck never fully warmed up either direction as it wasn't a far drive.
The truck has 79k on it. I've only had it for 8 months and 11k miles, but and have changed the oil every 5k with valvoline synthetic. I always run power service at every fillup. The only thing that changed was I found about a quart of new oil in a gallon container from my last change that I put in it before I left since it was in the lower part of the crosshatch on the dipstick.
Is this a failing CPS, or injector at only 79k? How and what all can I check? Like I said, it hasn't thrown a CEL or anything. This is my first diesel so I'm still a rookie. I know my way around gas engines, have owned several, but I'll need explanations on diesel.
Thanks for the help