2009 Mercury Sable Brake Service (ONLINE REPAIR MANUALS)

Bendix System

• Disconnect master cylinder from booster leaving brake lines connected and secure cylinder aside.
• Start engine and operate engine at idle speed.
• With engine running, position gauge over pushrod. Gauge should bottom against booster housing with force of approximately five lbs. applied to pushrod, Fig. . Ensure pushrod is properly seated in booster when performing gauge inspection.
• If force required to seat gauge is more than five lbs., shorten length of pushrod.
• If force required to seat gauge is less than five lbs., lengthen pushrod.
• Install master cylinder and remove reservo...

Parking Brake

Crown Victoria, Grand Marquis & Town Car

• Apply parking brake control fully with 100 lbs., foot pedal effort, then release brake control.
• Place transmission in Neutral position, then raise and support vehicle.
• With parking brake control in Off position, grasp pensioner around housing.
• Unlock clip by pulling downward with suitable hook tool place into rounded end of clip and support pensioner.
• Tensioner spring will take up cable slack and load cables, while holding pensioner, lock clip by pushing up on bottom of clip. If clip does not slide up move assembly slightly to align c...

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. Measure the disc at 12 points with a micrometer at a radius approximately one inch from the edge of the disc. If thickness measurements vary by more than .0005 inch, r...

Remove wheels and inspect brake disc, caliper and linings. Inspect wheel bearings and repack if required.

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

If caliper is removed when installing new components, clean all components in alcohol, then wipe dry using lint-free cloths. Blow out drilled passages and bores with compressed air. Inspect dust boots for punctures or tears, replace as required.

Inspect piston bores in both housings for scoring or pitting. Bores showing light scratches or corrosion can be cleaned with crocus clo...

Pressure bleeding is recommended for all hydraulic disc brake systems.

Do not reuse brake fluid drained from the hydraulic system when bleeding the brakes. Ensure disc brake pistons are returned to their normal positions and the shoe and lining assemblies are properly seated.

Do not shake the pressure bleeder tank while air is being added or after it has been pressurized. This will prevent air from the tank getting into the lines. Do not move the tank during the bleeding operation. The tank should be kept at least one third full.

On models equipped with power brakes, exhaust the...

Remove wheels and inspect brake disc, calipers and linings.

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

If caliper was removed when installing new components, clean all components 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.

Inspect piston bores in both housings for scoring or pitting. Bores showing light scratches or corrosion can usually be cleaned with...