My 2011 xl has a healthy sounding blower motor, but barely blows any heat or a.c. I pulled and tested the blend door actuator under the steering column on the driver side. I have not pulled the one behind the radio. I visually inspected the bm resistor, looks ok and all speed work. I don't know what else to try. All modes are weak. Heater, ac, defrost, and floor. Could my blower motor sound normal but not blow air? It just seems like something is blocking the heat and a.c.. Please do Help! Thanks, Montana is cold.