For 1990-2009 cars

Causes | Correction
--- | ---
Damaged vacuum booster | Replace the vacuum booster
Brake pedal linkage interference/binding | Repair or replace the brake pedal linkage.
Contaminated or improper brake fluid | Flush the brake system and repair the affected brake components.
Restricted passage in the vacuum booster | Locate and repair the restriction in the vacuum booster.
Restricted brake fluid passage | Locate and repair the brake fluid restriction.
Sticky caliper or caliper pistons | Replace or repair the caliper.
Parking brake not releasing | Repair the malfunctioning parking brake lever or the frozen parking brake cables.
Improper caliper to knuckle clearance | Repair as necessary.