Sorry all, in new here, and haven't come across anything yet on the 09' and up ram having some heat issues. All my blend actuators work, full of coolant, and have replaced the thermostat, as well as replaced the lost coolant in the process. Still no heat. The core was replaced a couple of years ago by the previous owner. Thought about a core flush. Any other ideas, or steps im missing??

2009 ram 1500 sport 5.7