Here's a general outline. Consult a repair manual specific to your 1995 Buick Century for detailed instructions and diagrams. These manuals show specific locations of parts, fasteners, and wiring harnesses unique to your car's model. Using a wrong approach can cause damage.
General Steps (May vary based on your specific Century model):
1. Access the Blower Motor: This usually involves removing parts under the dashboard. Expect to remove:
* The glove compartment: This often provides the easiest access to the blower motor housing.
* Various trim pieces: Expect several plastic panels and possibly screws holding them in place. Be careful not to break these clips!
* Possibly the radio: Depending on the exact placement, you might need to remove the radio for better access.
2. Locate the Blower Motor Housing: Once you have good access, identify the blower motor housing. It's usually a metal or plastic enclosure containing the blower motor.
3. Disconnect Electrical Connections: Unplug the electrical connector supplying power to the blower motor. Take pictures or make notes before disconnecting anything to aid reassembly.
4. Remove the Blower Motor: This often involves removing screws or bolts securing the motor to the housing. You may need to maneuver the motor out of a tight space.
5. Remove the Blower Motor Resistor (If Applicable): The resistor regulates blower speed. It is often mounted near the blower motor and might need replacement depending on the symptoms you experienced.
6. Install the New Blower Motor: Carefully install the new blower motor, ensuring proper alignment. Reattach all screws and bolts.
7. Reconnect Electrical Connections: Reconnect the electrical connector to the new blower motor, matching the wires exactly as they were before.
8. Reassemble: Put everything back in reverse order of removal. Carefully reinstall trim pieces and the glove compartment.
9. Test: Reconnect the battery and test the blower motor at different speeds.
Important Considerations:
* Repair Manual: A Haynes or Chilton repair manual specific to your 1995 Buick Century is highly recommended. This will provide detailed diagrams and instructions specific to your vehicle.
* Tools: You'll likely need various screwdrivers (Phillips and flathead), possibly sockets, pliers, and possibly a trim removal tool to avoid damaging the plastic clips.
* Patience: This is not a quick job. Take your time, be methodical, and be patient. Rushing can lead to damage or improper reassembly.
* Safety: Always disconnect the negative battery terminal before working on the electrical system.
If you are not comfortable working on your car's electrical system or removing parts of the dashboard, it's best to take your vehicle to a qualified mechanic. Attempting this repair without proper knowledge can cause more damage than good.
