Restricted passage in vacuum booster

Replace the vacuum booster.

Contaminated/improper brake fluid

Flush the brake system and repair the affected brake components.

Leaking vacuum booster

Replace the vacuum booster

Damaged vacuum booster

Replace the vacuum booster

Glazed brake linings

Replace the glazed brake linings.

Restricted brake fluid passage

Locate and repair the source of the brake fluid restriction.

Brake pedal linkage interference/binding

Repair or replace the brake pedal linkage.

Sticky caliper or caliper pistons

Replace or repair the caliper.

Low engine vacuum

Diagnose the low engine vacuum condition.