In order to fix the brake light you would have to remove the cover panel from inside the vehicle trunk and replace the bulb. If you take the car to an Auto Zone store, they will do it for you.
In order to change the brake light on the Ford LTD Expedition 500 series you must remove the light cover from the back of the lighting panel. You can access this from the trunk. Inside you will find the bulbs for the tail lights and brake lights. Remove the light and replace it with a new one.
It is important to have a diagram when making a change in the brake lines. A diagram for the 1997 Expedition 4wd brake line can be found in maintenance manual of the car.
change the light bulb,
Go to the ford dealer ship.
Change your brake rotor and brakes. problem solve
see owners manual. its easy to do
How to Install Front Brake Pads Check Related links below.
Check your owners manual. If you don't have one copy & paste this link. http://www.genuineservice.com/genuineservice/en/gloveboxresults
autozone.com has online manuals that give step by step how to
Check
This link is a video on how to change your brake pads: http://www.ehow.com/video_2328352_how-replace-brake-pads.html. There are several other videos in the same series on other brake and car maintenance.
According to the 2000 Ford Expedition Owner Guide : ( DOT 3 brake fluid ) meeting Ford specification ( ESA-M6C25-A )