1. Preparation:
* Safety First: Disconnect the negative battery cable to prevent electrical shock.
* Gather Tools: You'll need a variety of tools, likely including:
* Socket set (metric)
* Ratchet and extensions
* Screwdrivers (Phillips and flathead)
* Possibly a torx bit set
* Wire cutters/strippers (if replacing wiring)
* Multimeter (to test the motor and wiring – highly recommended)
* Shop manual (highly recommended – a Chilton's or Haynes manual specific to your year and model Expedition will be invaluable)
* Obtain Replacement Part: Make sure you have the correct replacement motor. Provide your VIN to a parts dealer for accurate ordering. Note that the motor itself might be part of a larger assembly.
2. Accessing the Seat Motor:
* Remove the Seat: This usually involves removing bolts under the seat, and possibly disconnecting seat belt connectors. Consult your shop manual for precise location and procedure. The seat will likely be heavy, so have a helper.
* Locate the Motor: Once the seat is out, locate the motor responsible for the malfunctioning seat function. The motor will likely be connected to a linkage system. Your shop manual will show the exact location and how it's attached. Often, there are several motors in the seat mechanism (for forward/backward, recline, lumbar support). Identify the faulty one.
3. Removing the Faulty Motor:
* Disconnect Electrical Connectors: Carefully disconnect the electrical connectors leading to the motor. Take pictures or make notes on the connections for easier reassembly.
* Remove Mounting Hardware: Unscrew or unbolt the motor from its mounting bracket. This might involve removing other components first.
* Disconnect Linkage: Carefully disconnect any mechanical linkages connecting the motor to the seat's moving parts. Again, pictures or diagrams are essential here.
4. Installing the New Motor:
* Connect Linkage: Carefully connect the linkage from the new motor to the seat mechanism, ensuring proper alignment.
* Mount the Motor: Securely mount the new motor to its bracket using the same hardware you removed earlier.
* Connect Electrical Connectors: Connect the electrical connectors to the new motor, making sure they are securely fastened and match your notes or pictures.
5. Reassembly:
* Reinstall the Seat: Carefully reinstall the seat, making sure all bolts are tightened securely.
* Reconnect Battery: Reconnect the negative battery cable.
6. Testing:
* Test Seat Functionality: Test the repaired seat function thoroughly. Verify all movements (forward/backward, recline) operate correctly.
Important Considerations:
* Shop Manual: A shop manual is crucial. It provides detailed diagrams and instructions specific to your vehicle's model year. Attempting this repair without one significantly increases the risk of damage or incorrect installation.
* Electrical Wiring: Be cautious when working with electrical components. If you are unsure about any electrical connections, consult a qualified mechanic.
* Complexity: This is not a simple job. If you're not comfortable with automotive repairs, it's best to have a professional mechanic perform the repair. Improper repair could lead to further damage or injury.
This is a general overview; the specifics will vary significantly depending on the exact problem. Always consult a repair manual specific to your 2000 Ford Expedition before attempting this repair. If you are uncomfortable with any aspect of this process, it's best to seek professional help.
