Tools You'll Need:
* Phillips head screwdriver (likely) or possibly a Torx screwdriver depending on the bulb type and your specific vehicle.
* New brake lamp bulb (Make sure you get the correct wattage and type. Check your owner's manual or the old bulb for this information.)
* Rag or shop towel (to keep things clean)
Steps:
1. Safety First: Park your Expedition on a level surface, engage the parking brake, and turn off the engine.
2. Access the Tail Light Assembly: This is usually done by accessing it from inside the cargo area, but it *could* require partial removal of the inner plastic paneling of the rear quarter panel. Consult your owner's manual to determine the correct access method. Some models may require removing the entire tail light assembly.
3. Remove the Tail Light Assembly (if necessary): If access requires removing the tail light housing, carefully locate the retaining screws or clips holding it in place. These are usually located around the edges of the light assembly. Remove these fasteners gently to avoid breaking them.
4. Locate the Brake Light Bulb: Once you have access to the inside of the taillight assembly, you'll see several bulbs. The brake light bulb is usually the larger one.
5. Remove the Old Bulb: There is usually a retaining clip holding the bulb in place. Gently twist the bulb, and it should pull straight out. Do not touch the glass part of the bulb with your bare fingers. The oils from your skin can shorten the bulb's lifespan. If you do touch it, wipe it with a clean cloth before inserting the new one.
6. Install the New Bulb: Carefully insert the new bulb into the socket, ensuring it's properly seated. Twist it gently until it clicks into place.
7. Reassemble: Carefully put the tail light assembly back into place (if you removed it) and secure it with the screws or clips.
8. Test the Brake Lights: Turn on your brake lights to ensure the new bulb is working correctly. If not, double-check the bulb is seated properly. If the problem persists, there may be a wiring issue.
Important Considerations:
* Bulb Type: Note the type and wattage of the old bulb before you purchase a replacement. The wrong bulb can cause problems.
* Wiring: If the new bulb doesn't work, there may be a wiring issue within the taillight assembly or further up the electrical system. You may need professional help for this.
* Owner's Manual: This is the most crucial resource. Your owner's manual will provide specific instructions tailored to your 1998 Ford Expedition Eddie Bauer model, and might even include diagrams.
By carefully following these steps and referring to your owner's manual, you should be able to successfully replace your brake lamp. If you are uncomfortable performing this repair yourself, it's always best to consult a qualified mechanic.