1995 Mercury Sable Brake Service (ONLINE REPAIR MANUALS)

Removal

• Raise and support rear of vehicle, then remove tire and wheel assembly.
• Remove brake drum and hub as follows:
• Remove drum retainer push nuts, then slide drum off hub, Fig. .
• If drum is stuck to hub, use a suitable hammer to lightly tap on face of drum in flange mounting area to release.
• If brake lining is dragging on brake drum, back off brake adjustment by holding adjustment lever off star wheel, then loosen star wheel, Fig. .
• Remove hub nut cover and discard.
• Remove hub nut and discard, then slide hub and one-piece bearing assembly off spindle.
• Install suitable wheel cylinder pi...

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...

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...

Power Booster, Replace

Aspire

Pump brake pedal several times to exhaust any vacuum in the booster.

• Remove master cylinder as described in "Hydraulic Brake Systems."
• Disconnect vacuum hose from power brake unit.
• From under instrument panel, remove brake pedal clevis pin, then detach pushrod from brake pedal.
• Remove power brake unit attaching nuts, then remove power brake unit.
• Reverse procedure to install noting the following:
• Ensure proper clearance between pushrod and master cylinder exists as described under "Adjustments."
• Bleed brakes as described in "Hydraulic Brake Systems."
• Torqu...

Remove wheels and inspect brake disc, caliper and linings. The wheel bearings should be inspected at this time and repacked if necessary. Do not get any grease on the linings.

If the caliper is cracked or fluid leakage through the casting is evident, it must be replaced as a unit.

Should it become necessary to remove the caliper when installing new parts, clean all parts in alcohol, then wipe dry using lint-free cloths. Using an air hose, blow out drilled passages and bores. Inspect dust boots for punctures or tears. If punctures or tears are evident, install new boots during assembly.

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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...