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BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Anti-Lock Brakes -> Continental, Crown Victoria, Grand Marquis, Sable, Taurus & Town Car -> Diagnosis & Testing -> 1997 -> 1998 -> Accessing Diagnostic Trouble Codes -> Clearing Diagnostic Trouble Codes -> Continental -> Crown Victoria & Grand Marquis -> Diagnostic Lamp Symptom Chart -> Diagnostic Procedure -> Diagnostic Trouble Code Interpretation -> Pinpoint Tests -> Quick Checks -> Sable & Taurus -> Town Car
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Diagnostic Procedure
Ensure the following diagnosis procedures are used in the sequence and step-by-step order indicated. Following the wrong sequence or bypassing steps will only lead to unnecessary replacement of system components and/or incorrect resolution of the problem. The diagnostic procedure consists of five sub-tests: Pre-test Checks, On-Board Self-Tests, Manual Quick Tests, Warning Lamp Symptom Chart and the Diagnostic Tests.
Accessing Diagnostic Trouble Codes
The anti-lock brake/traction assist electronic control module is capable of performing a self-test using New...
[[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]] [[table data]]CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Anti-Lock Brakes -> Continental, Crown Victoria, Grand Marquis, Sable, Taurus & Town Car -> Description -> ABS Module (Electronic Control Unit) -> Anti-Lock Brakes -> Continental & 1998 Crown Victoria, Grand Marquis & Town Car -> Hydraulic Control Unit -> Master Cylinder -> Operation -> Pedal Travel Switch -> Sable, Taurus & 1997 Crown Victoria, Grand Marquis & Town Car -> System Components -> Traction Assist -> Vacuum Booster -> Wheel Sensors
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Sable, Taurus & 1997 Crown Victoria, Grand Marquis & Town Car
The anti-lock system (ABS), Figs. and , controls each brake separately. The brake pedal force required to engage the system may vary with road surface conditions. A dry surface will require a high force, while a slippery surface will require a much less force. During system operation, the driver will sense a slight brake pedal pulsation accompanied by a rise in brake pedal height and a clicking sound. The pedal effort and pedal feel during normal braking are similar to a conventional power brake system.
Continental & 1998 ...
CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Power Brake Units -> Power Brake Unit Service -> 1997 -> 1997-98 w/Hydro-Boost System -> 1997-98 w/Vacuum Type System -> 1998 -> Aspire -> Continental -> Contour & Mystique -> Crown Victoria, Grand Marquis & Town Car -> Escort, Probe, Tracer & ZX2 -> Mark VIII -> Mustang -> Overhaul -> Power Booster, Replace -> Sable & Taurus -> Thunderbird & 1997 Cougar
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
On Vehicles Equipped With Anti-Lock Brakes Refer To "Anti-Lock Brakes".
Power Booster, Replace
Aspire
Pump brake pedal several times to exhaust any vacuum in the booster.
- Remove master cylinder as described in the "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 und...
CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Disc Brakes -> Rear Disc Brakes & Parking Brakes -> Troubleshooting -> Brake Roughness
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Brake Roughness
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, replace ...
CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Disc Brakes -> Rear Disc Brakes & Parking Brakes -> Description -> Contour & Mystique -> Cougar, Sable, Taurus, Thunderbird & 1997-98 Continental, Mark VIII & Mustang -> Crown Victoria, Grand Marquis & Town Car -> Escort, Probe, Tracer & ZX2
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Cougar, Sable, Taurus, Thunderbird & 1997-98 Continental, Mark VIII & Mustang
Sliding caliper rear disc brakes are used on these models, Fig. . The caliper is basically the same as the larger front wheel caliper. However, a parking brake mechanism and a larger inner brake shoe anti-rattle spring have been added.
The parking brake lever, located at the rear of the caliper, is actuated by a cable system similar to rear drum brake applications. When the parking brake is applied, the cable rotates the lever and operating shaft, driving the caliper piston and brake shoe assembly against t...
CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
BRAKE SERVICE PROCEDURES FOR 1998 Mercury Grand Marquis AUTOMOBILES
Includes anti-lock brakes, disc, drum, power and hydraulic brake services diagnostics and procedures for domestic and imported 1998 Mercury Grand Marquis cars and light trucks from 1990+.
Anti-Lock Brakes -> Continental, Crown Victoria, Grand Marquis, Sable, Taurus & Town Car -> System Service -> 1997 -> 1998 -> ABS Module (ECU) -> Brake System Bleed -> Component Replacement -> Continental -> Continental, Crown Victoria, Grand Marquis & Town Car -> Continental, Sable & Taurus -> Crown Victoria, Grand Marquis & Town Car -> Front Speed Indicator Ring -> Front Wheel Sensor -> Hydraulic Control Unit -> Installation -> Manual -> Pressure -> Rear Speed Indicator Ring -> Rear Wheel Sensor -> Removal -> Sable & Taurus -> Sable & Taurus Sedan -> Sable & Taurus Wagon -> Stop Lamp Switch
Vehicle: 1998 Mercury Grand Marquis 4.6 V8 GAS
Brake System Bleed
Manual
The primary and secondary (front and rear) hydraulic brake systems are individual systems and are bled separately. Bleed longest tube first on individual system being serviced. During complete bleeding operation, DO NOT allow the master cylinder reservoir to run dry. Never reuse brake fluid that has been drained from hydraulic system or has been allowed to stand in an open container for an extended period of time.
- Clean all dirt from master cylinder filler cap, then remove cap.
- When bleeding the primary (rear) brake system, position a suitable box wrench on ...
CLICK HERE TO GET FULL ACCESS TO 1998 Mercury Grand Marquis BRAKE SERVICE PROCEDURES
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