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Why ? Just replace it.
check your brake lights if they not worhing replace fuse or brake light switch
Check the brake light switch ,on the brake pedal. Might need adjusting.
APPLY BRAKES AND SEE IF BRAKE LIGHTS COME ON. IF NO BRAKE LIGHTS, REPLACE THE BRAKE LIGHT SWITCH LOCATED ON THE BRAKE PEDAL ARM AND THIS SHOULD ALLOW YOU TO SHIFT OUT OF PARK. IF THAT BRAKE LIGHT SWITCH IS BROKE, YOU WON'T BE ABLE TO GET IT OUT OF PARK
Not very hard. You have remove the panel that is under the dash. It should be a big black panel. The switch is on the brake pedal. Remove the two wires to the switch and unscrew it and replace it and reverse the order and you are done.
Adjust or replace the stoplight switch at the upper end of the brake pedal under dash area
The brake light switch is bad. It's under the dash, and is switched by the movement of the brake pedal.
THE BRAKE LIGHT SWITCH IS NOT PUTTING OUT BATTERY WHENEVER THE BRAKE PEDAL IS PUSHED DOWN. CHECK TO SEE IF BRAKE LIGHTS COME ON WHEN BRAKE PEDAL IS PUSHED DOWN. IF BRAKE LIGHTS COME ON, THEN YOU SHOULD BE ABLE TO SHIFT IT OUT OF PARK. IF NO BRAKE LIGHTS, THEN IT WON'T SHIFT OUT OF PARK. IF THIS IS THE CASE, THEN REPLACE BRAKE LIGHT SWITCH.
It's located on the steering column 2 screws unplug the harnest
it is on the firewall and difficult but not impossible to get to and replace.
on the arm of the brak pedal there is a rod pinned to the arm along with the switch. pull the clip out with pliars and slide the pin out half way , then lift the switch out. unplug it and replace. install is just the opposite.
How do you replace the timing chain on a 1994 mercury grand marquis