1995 Mercury Grand Marquis Brake Service (ONLINE REPAIR MANUALS)

Complaints about power brake operation should be handled as if two separate systems exist. Inspect for faults in the hydraulic system first. If it is satisfactory, start inspecting the power brake circuit. For a quick inspection of proper power unit operation, press the brake pedal firmly and then start the engine. The pedal should fall away slightly and less pressure should be needed to maintain the pedal in any position.

Another inspection begins with installation of a suitable pressure gauge in the brake hydraulic system. Take a reading with the engine Off and the power unit n...

On models with anti-lock brakes, the brake hydraulic system must be depressurized before disconnecting any hydraulic lines or fittings. Depressurize the system by pumping the brake pedal a minimum of 25 times with the ignition in the Off position.

Except Aspire, Capri, Escort, Mustang Cobra, Probe & Tracer

Removal

• Remove brake fluid until reservoir is half full.
• On Continental, Sable and Taurus, if equipped, turn air suspension service switch Off.
• On all models, raise and support front of vehicle, then remove wheel and tire assembly.
• Remove caliper locating pins.
• Lift caliper assembl...

Capri

Rear braking is provided by self-adjusting, single piston, floating caliper disc brakes, Fig. . The caliper slides on two hollow, stainless steel guide pins in bushings.

One guide pin is secured to the anchor bracket by a bolt. The other guide pin is held in position by the caliper retaining bolt.

The disc pads are held in the anchor bracket by two retaining clips and a "V" spring. The caliper must be removed to replace the disc pads.

During normal operation, hydraulic pressure from the master cylinder pushes the piston forward and applies pressure on the inboard brake pad. This pre...

Brake System Bleed

• Disconnect 55-pin plug from ABS module (ECU), then attach anti-lock breakout box/bleeding adapter tool No. T90P-50-ALA, or equivalent, to wiring harness 55-pin plug.
• Place bleed/harness switch in bleed position.
• Turn ignition to On position. Red Off light should turn on.
• Push motor button on adapter down to start pump motor. Red Off light will turn off and green On light will turn on. Pump motor will run for 60 seconds once motor button is pushed.
• If pump motor is turns off before 60 seconds has elapsed, push abort button and pump motor will turn off.
• After 20 second...

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...

• On models equipped with anti-lock brakes, hydraulic system must be depressurized prior to disconnecting any hydraulic lines or fittings, by pumping the brake pedal a minimum of 25 times with ignition in Off position.
• On all models, grease or any other foreign material must be kept off caliper, disc surfaces and external hub surfaces during service procedures. Handling brake disc and caliper should be done in a way to avoid deforming disc and nicking or scratching brake linings.
• If inspection reveals rubber piston seals are worn or damaged, they should be replaced immediately.
• During wh...