[joe_padavano]

The first thing I would do is run a temporary jumper wire from the +12V terminal on the battery directly to the power terminal on the motor (be sure you have the power terminal and not the ground terminal). This is the highest speed for the motor and if you now get proper flow, then there's a problem in the switch or the speed control resistor. You should also be able to hear the motor running at full speed. If not, then there is probably a problem with the motor. If the motor runs but there's still no air, you may have a plugged evaporator or you may have a problem with the vacuum actuators for the air doors in the box under the dash.