No fix unfortunately, took mine in to the dealer for the second time (got the new fluid the first time), and they said they couldn’t feel anything wrong with it. This thing vibrates randomly if I’m going >25mph. I just crossed 4K miles on mine.
I have a 2.7 also, and I haven’t had any low oil pressure readings or cold start issues. I would say mine start up/idle is extremely smooth, sometimes I can’t tell if the truck is running or not. Might want to get that checked out.