This is the brake light switch for a 1997 Town Car w/ 4.6 L V-8 (click on my link below).
https://shop.advanceautoparts.com/p/motorcraft-brake-light-switch-n3150263943mtr/10768905-P?searchTerm=brake+light+switch
This will be found at the top of the brake pedal arm where it pivots.
Notice the "half moon" cuts in the switch, this is what hooks over the pedal's axle (lack of a proper term for it). It is usually well hidden up in there.
They will go bad, sometimes they just sort of slide/jump out of place and can be put back.
A large hand mirror stolen from your wife or girlfriend and a small bright flashlight may let you see the situation before you get all contorted in the floorboard.
Let us know how it goes.
The Medic
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Thursday, September 28th, 2017 AT 4:30 PM