there is a stop lamp switch that engages the brake pedal. it operates opposite to how you normally would think it would--when the stop lamp switch is pressed upon (or when the brake pedal is up--meaning, when you're not stepping on the brake pedal), the brake lights don't illuminate. When you press on the brake pedal, the switch is no longer pressed upon, and the brake lights illuminate.
there is a white plastic piece on the brake pedal that presses onto stop lamp switch. yours probably broke off, so you'll need to replace it.
what i did, when my brake pedal's white plastic piece broke off, is I took a short 10mm bolt (like the ones that hold ground wires onto your intake manifold) and an acorn nut (the exactly the same as the ones that secure DE valve covers in place), and screwed the nut in place of where the white plastic piece would be. the acorn nut now presses against the stop lamp switch. This is a very effective and permanent solution to the brake light woes you are currently experiencing.
Last edited by worldcrafter; 05-12-2011 at 07:00 PM.