Posted 25 February 2013 - 11:19 AM
I sounds as if your brake switch needs tightning up. The brake switch sits infront of the brake pedal, if you get your head down in the drivers footwell beneath the freash air duct pipe going to the heater you should see it connected to a bracket just infront of the brake pedal with two electrical speades coming from it, they vary in looks over the years but mine is a white plastic type.
When the brake pedal is up (relaxed) the action of the brake pedal pushes on the spring plunger (rather like a push button) braking the contact inside the switch, i.e open = no contact.
When you push on the brake the switch opens and connects the terminals in the switch making continuity in the circuit and thus your brake lights come on.
You should find on the head of the switch (opposide side of the electrical spades) a threaded nut, this needs to be tightened up, one of two ways to do this.
1.. Hold the switch steady and adjust the nut on the switch, or.....
2.. release the electrical tabs, hold the nut on the rear and screw the brake switch clockwise to tighten it onto the nut. You want to screw the unit back together just enough so the brake light illumintaes when you start to depress the pedal but brake lights 'obviously' go off when the pedal is returned.
Good luck!