Heater issues
 

2011 Ram 1500 5.7L hemi. My heater isn't blowing hot. I was told to check the outflow of the heater core to make sure coolant is flowing through the core properly. I'm trying to figure out which hose is the return hose from the heater core to the engine. Thanks!!

Start by checking the actual radiator to see if it's full first.

I did that, radiator is full.

I think I have my issue down to the blend door. I switched my heat from floor to dash vents and it feels like hotter air is blowing out the passenger side than the driver's side. How much of a PITA is it to get to the driver's side blend door? If it matters, I have a center console.

The hose which connects to the black pipe on the water pump is the hot water going to the heater core. The hose connected to the silver nipple on the water pump is the return line from the heater core.
Mike Sal