A: To replace the fan motor, disconnect the battery's negative cable. Unplug the fan motor's electrical connector. Remove bolts securing the fan frame to the Radiator and lift out the assembly. Detach the fan from the motor by removing the retaining nut and then unbolt the motor from the frame. To install, secure the new motor to the frame, reattach the fan, and reinstall the assembly. Connect the electrical plug and battery cable. Test the fan as the engine warms.