25 miles one way. I let it warm up a bit in the driveway before I left. I was at 120 degrees coolant temp when I left home. It was at 190 within 10 miles. I'm assuming heater core as well. The doors are opening and closing as they should. I believe the heat difference is common with heater core issues from what I've been reading. I think mtnrider is spot on with what I've been seeing.
I'm going to try to slip away from work a little early today and attempt a flush. I did test our Armada heat and it's putting out 150 degrees across all the vents. I would assume that mine should be in that ballpark. I know the others in my sig would melt you to the point that I couldn't run the heat for very long.
I'm not going to have enough time to pick up the air assist gun so I'm going to have to use what I have to try and get this done for now but if I can get the heat back in the cab through this winter I'll work on a more detailed flush in the spring. If it comes to the point of heater core replacement in the future, I'll send it to the shop. I don't have the time or the desire to spend an entire weekend removing my dash.