Description
tail lights don't work but all fuses are good

Explanation & Answer

It could be the bulb.
Or
Please check your Main head light switch
The Power goes to the head lamp switch, back through to the lights so the switch gets verryyy hot and being a 93 towncar the part is well past its life span too!
You should be able to get a replacement part cheap enough or go to local junk yard if you feel lucky!
Source
http://www.fixya.com/cars/t3739188-1991_lincoln_town_car_tail_light_dash
