Last week I was driving home and the truck stumbled the CEL light came on kicked out a P0251. It recovered and the light went out and all was fine. I noticed today a funny fuel odor(like spilled fuel) I crawled underneath and noticed venting under my truck while it was running and it smelled like fuel. Shut it off and checked the oil and it was 3 inches over full and smelled like diesel. My guess is bad injector or injectors. Anyone had this? The dealer came and hauled it off like a repo. Kinda sad and stressed

 

Yep, you seem to know what's gone wrong. Same thing happen to me awhile back. He's my post.

https://www.dieseltruckresource.com/...816#post691816

 

I had fuel in my engine oil due to 3 faulty injectors. Two weeks in the shop, new injectors, oil/filter change, and it runs great.