1993 ford ranger heat problem

I have very little heat on my 1993 ranger. I have replaced the thermostat, my radiator, and have a new heater core installed. My heater hoses are not hot. One is luke warm and the ther is pretty much cold. Any suggestions?

Did you replace your heater hoses?If not check to see if one has a clog in it.Also see if there is a clog where the hose attach to the water pump and the block.

i have a smilar probelm kinda, on a 93 ranger as well, like it heats up fine and the thermosate is good and stuff, but inside you know on the actual thing to switch the heat on and off and to put it to panel and stuff or defrost, well it seems like i only get air to come out the vents when the turn nob is all the way to the high position, like i dont get any air, hot or cold coming out if its just on half way?? anyone know why?? it would like 2 months ago but not now? because of the cold weather???