It could very possibly be your blower motor resistor and needs to be replaced.
The resistor is located on the side of the blower motor near the vent tube.
After you remove the servo motor and washer/coolant canister you will see a wire harness leading to the resistor. Disconnect the harness and remove the hold down screws to remove the resistor for replacement.
Wednesday, January 13th, 2010 AT 8:47 PM