I wass wondering how diffcult would it be to fix a timing belt on 1995 mercury mystique? Or is it expensive? And replacing all four brakes? Is that expensive?

Do your brake lights work? Your brake pedal switch supplies power to the shift solenoid to alow you to shift. When you push the pedal do you here a clicking in the Shifter? The fuse might have blown, it is in the interior fuse panel possibly listed as shift interlock.

check here:

MERCURY MYSTIQUE Belt Routing Diagram from Best Value Auto Parts

Changing the Timing Belt in Mercury Mystique

you should not have to pull the engine to do this, you need to take apart the front (timing cover) so that you can access the lower portion where the crank shaft is so you can line up the marks for a new belt installation-the belt has a tensioner so it getting really loose means you should check it out if you decide to do the belt.

This can be a big problem if it is a Non Interferrance Motor, meaning that when your timing belt broke you engine basically free wheeled during slow down. This can bend the intake and exhaust valves, extended cranking on motor trying to get it to start after the belt breaks can also cause this. You can get a Chiltons manual to have a guide in replacing the timing belt, i can say i know the motor in your car is a dual over head cam engine. These can be a little more difficult to do if you have never replaced a timing belt. May be best to take it to a professional that can test the head and make sure that no valves are bent before you pay for the belt and timing tensioner.

computer cars r complicated-u cud hav a vacuum leak that doesnt show code--may need to clean some injectors-inner ones--how r the plug wires they wear internally as well as coil--maybe du another scan-ur ride is 16yrs

YOU'LL FIND A MELTED 40 AMP FUSE IN THE FUSE BOX UNDER THE DASH ABOVE AND LEFT OF THE BRAKE PETAL. GOOD LUCK!

BELIEVE IT OR NOT I THINK ITS YOUR ALTERNATOR! THIS IS TYPICAL FOR THE MYSTIQUE OR SHOULD I SAY (MISTAKE). NOTHING YOU CAN DO , ITS AN ELECTRICAL DESIGN FLAW. THE CARS ARE TO ELECTRONIC FOR THEIR ALTERNATORS OUTPUT. OF COURSE THIS IS MY OWN ASSUMPTION. THEY ARE AN ELECTRICAL NIGHTMARE. HOWEVER I DID FINALLY FIX THE PROBLEM I HAD WITH MINE.( I SOLD IT!)

it is just to the left of the brake fluid resovoir near the firewall, it is short.

if it like a 98 there are 2 slots on the far end of the cams.remove spark plug #1 closest to the timing belt and set to tdc....then align the two slots so you can get a straight edge into both at the same time....i use a piece of keystock.....place the belt on and thats it....really qiute simple