With the information you have provided I would have to say that there are to possible causes. One, the is debris in the fan, Two, the fan motor is bad. The fan can be accessed from the passenger side of the dash. Remove the cardboard under dash panel (3 clips), unplug the motor, and remove the 3 screws holding the blower motor in, carefully lower the blower motor. At this point you can clean the debris from the fan, if there is no debris then it is likely that the bearings in the blower motor have failed.
Thursday, March 19th, 2009 AT 2:45 PM