I have owned one ton Cummins since 2004. A 2004, 2009 and currently a srw 2017 aisin. Because of the price right now and the need/want for a dually am considering switching over to a 2019 drw high country. I really like the ride and acceleration that my current truck doesn’t have. I have analysis paralysis looking up threads of issues with this new motor. My question is: are there any known common issues or is it just like the Ram forum and 10 guys out of thousands make it seem like the sky is falling? Are most of you happy with you’re truck? Thanks for the replies.
your experience on any product forum is almost certainly going to be skewed by the higher percentage of users coming there for problems, than the number of users posting about how well there product works. That's the same on the dodge forums and here
Personally, i would buy an LML only because the L5P is so new, and in a pinch, you can still delete an LML with ease. I suspect like every other duramax, theres going to be something that is a "common" issue, but like the other trucks it will get blown out of proportion on the forums. If you like the way the L5P drives and pulls, since from what i hear its significantly different than the older trucks, then go for it, your not rolling the dice with any more risk than buying any other early production platform.
That said, for various reasons, paint, fitment, build quality, emissions reliability, god awful hideous front ends ect, my next truck will likely be a cummins.