Any diesel techs out there

I'm sure the issue is fuel related, that is really all there is on a diesel. As stated check and change your filter first. There were issues with the stock lift pumps, There are retrofit kits from Mopar to put an electric pump in the tank like the newer ones have and bypass the stock lift pump. After that I'd be looking at the injection pump.

And I agree if you had a leak you would see it.