The best answer shown on here is completely wrong. There is no carpet or anything like that to deal with. Other answers have answered it pretty well being you simply open the back gate which will give you access to two Philip head screws. Simply remove them and the lens should come out allowing accessing to change the bulbs which you simply twist the connectors and pull out. The connectors are keyed too so they only go back in one way then twist to lock in place.
What wanted to add to the answer is if your lens does not want to come straight out after the two screws are removed then note it's two guide pins that are holding it in. Take a flat head screw driver or small pry bar and place between the van and the back of the lens and near the top then bottom and gently pry to get the guide pins to pop out. To locate the guide pins you should be able to look through the small gap and see them and know that's the area to gently pry. Don't give it a lot of force to reduce risk breaking the lens or scratching the paint on the van.
Once your done changing the bulbs you need changed, line the guide pins back to their respective holes in the van then push the lens in place. Secure the screws and if needed, tap the side with the guide pins if they haven't seated all the way. They'll pop back into the hole securing them in place.
That's it!
Just unscrew the rear brake light, turn out the socket, and replace the bulb.
On the brake pedal assembly.
This is usually cause by a stuck brake light switch on the brake pedal. Replace it.
Just unscrew it.
Brake light switch needs adjusting or replacing. It is too sensitive.
Stop light switches are mounted on the brake pedal lever, typically.
"Stuck" brake lights indicate that the brake light switch on the brake pedal is broken. It should be replaced.
You may be low on brake fluid. If you are low on brake fluid you may be ready for some brake work or you have a leak somewhere in the system, have it checked soon!
The bulbs screw in from the rear. There are screws holding the light assy on and youhave to take them out to take the light off.
You must remove the instrument cluster to do so.
None. Engine timing is set by the PCM, you can not change it with a timing light.
To replace the brake light on a 2000 Mercury Villager Sport, first, open the rear hatch and locate the tail light assembly. Remove the screws or clips holding the tail light in place, then gently pull the assembly out. Disconnect the wiring harness and twist the bulb socket counterclockwise to remove it. Replace the old bulb with a new one, reassemble the tail light, and test the new brake light to ensure it works.