I have a 2001, my ac and heater only push out air if the car is moving at 45 mph+ and even better if you crack the window to create a suction. You can move the fan switch to any position no change unless off, then no air. I know switch is transmitting electrical messages because the car will power down if you turn switch off and on. Every now and then you can hear a clunking sound at night when its real quite outside, when its on down around the passenger floorboard. Do you think the problem is the fan motor, if so what is the technical name? Where is it located in the engine? How much do you think a new one will cost? Or do you think it is something else? Would really like to get fixed before summer, winter was hard enough to get thru with out it working properly. Thanks.