most likely is air in the system so you need to bleed brakes , or you have a component leaking fluid. inspect all calipers and wheel cylinders for fluid leaks. it might be a master cylinder leak / malfunction also. but air is most likely.
Overload or short to ground
Check the shift unlock solenoid. The solenoid is known to go bad and cause this issue in a tracer.
You could try recharging the battery, or having the connections checked by a mechanic.
you could have a short between the two.
According to the Gates website ( they make timing belts etcetera ) the 1.8 and the 1.9 liter four cylinder engines used in a 1995 Mercury Tracer are ( NON - INTERFERENCE engines )
You could check the switch on the brake pedal, sometimes they need to be adjusted so the cruise will stay on.
white exhaust and rough running usually indicate possible blown head gasket.
ck bulbs first then ground circuit and power on trunk lights.Ground most likely
The burn from a tracer round.
Check into the ABS pump or module ---- I would say the pump
worn brakes could be the cause or check the A frame bushings
you need new brakes