I have a 2015 ram 79,000 mil. running good then all heck let lose. The eng, started missing, then it would not regen. then will, not start. Checked h,p,pump full of junk. No place in this area wants to look at it. So am doing myself. Found 38 pages of how to do. I have 3, 2nd gen diesel trucks and 3, 3erd gen diesels.I do most all the work on them ,