Inspect for the following conditions:

Replace any faulty pipes or hoses.

Inspect for a plugged or loose vacuum fitting.

Clean and correctly tighten the vacuum fitting.

Inspect for the following conditions:

Replace the vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

DEFINITION: Apparent Off-On Condition

Inspect for broken or damaged hydraulic brake pipes and hoses.

Replace any faulty pipes or hoses.

Inspect the master cylinder for a low fluid level.

Inspect the master cylinder for faulty seals.

Repair or replace any faulty seals.

Inspect the master cylinder for a cracked casing.

Replace the master cylinder. Refer to Master Cylinder Replacement .

Inspect the following components for leaks:

Repair or replace any faulty components. For hose replacement, refer to the appropriate procedure from the following list:

Inspect the hydraulic system for air.

Bleed the system. Refer to Master Cylinder Bench Bleeding .

Inspect for the following conditions:

Replace the vacuum booster. Refer to Power Vacuum Brake Booster Replacement .

Inspect for a tight brake pedal linkage.

Repair or replace any faulty component.

Inspect for misadjusted stoplamp or cruise control switches.

Correctly adjust the switches.