1995 Mercury Mystique Brake Service (ONLINE REPAIR MANUALS)

Brake Roughness

The most common cause of brake chatter on disc brakes is a variation in thickness of the disc. If roughness or vibration is encountered during highway operation or if pedal pumping is experienced at low speeds, the disc may have excessive thickness variation. To inspect for this condition, measure the disc at 12 points with a micrometer at a radius approximately one inch from the edge of the disc. If t...

Pressure bleeding is recommended for all hydraulic disc brake systems.

The disc brake hydraulic system can be bled manually or with pressure bleeding equipment. The brake pedal will require more pumping and frequent inspecting of fluid level in master cylinder during bleeding operation.

Do not use brake fluid drained from the hydraulic system when bleeding the brakes. Be sure the disc brake pistons are returned to their normal positions and the shoe and lining assemblies are properly seated. Before driving the vehicle, inspect brake operation to be sure a firm pedal has been ob...

• Inspect components for damage and unusual wear. Replace as necessary.
• Inspect wheel cylinders. Boots which are torn, cut, or heat damaged indicate need for wheel cylinder replacement. Fluid spilling from boot center hole, or wetness around wheel cylinder ends indicates cup leakage and need for wheel cylinder replacement. A small amount of fluid is always present and is considered normal, acting as lubricant for cylinder pistons.
• Inspect backing pla...

Removal

• Raise and support vehicle, then remove rear wheel
• Remove locknut and brake drum. Locknut on righthand side of vehicle has lefthand threads. Turn locknut clockwise to remove.
• Remove hold-down clips and retaining pins, Fig. .
• Remove all return springs, then the primary and secondary brake shoes.
• Remove cotter pin, then the clevis pin from parking brake strut/self-adjuster. Disengage parking cable from self-adjuster.

Installation

• Clean backing plate with factory approved vacuum cleaner.
• Lubricate backing plate shoe pads with suitable high temperature brake grease, such as Motorcraft ...

Parking Brake Linings, Replace

Crown Victoria, Grand Marquis & Town Car

The parking brake system is a drum type design mounted in the hubs of the rear brake rotors.

• Raise and support vehicle, then remove wheel and tire assembly.
• Remove caliper as previously outlined, then the rotor assembly.
• Drain differential fluid from axle by removing cover.
• Remove lock bolt from differential pinion shaft, then shaft from differential.
• Push axle shaft inward to access and remove axle shaft C-lock.
• Remove ABS speed sensor, then axle shaft from axle housing.
• Disconnect brake cable from lever, then...

Master Cylinder Overhaul

Disassemble

• Clean outside of master cylinder thoroughly. Drain brake fluid from master cylinder.
• Remove stop bolt and pressure control valves, if equipped.
• Using a screwdriver, carefully pry up on reservoir and remove it from master cylinder body.
• Remove fluid control valve, if equipped.
• Depress primary piston and remove snap ring from retaining groove at open end of bore.
• Remove primary and secondary piston assemblies from master cylinder. If secondary piston does not come out, apply air pressure to secondary outlet port to remove.

Inspection

When disassembled...