New 3500 Cummins diesel Ram truck with 7012 miles on it puts up a nice DEF alarm warning.
150 miles and it goes into 5mph limp mode.
I was 6.5 hours away last night. I only thought Duramax's had this problem and Cummins diesels were fool proof. Now i'm nervous its going to happen over and over.

Needed a Nox sensor. Why?