Restricted passage in the 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 fix the source of the brake fluid restriction.

Brake pedal linkage interference/binding

Repair/replace the brake pedal linkage.

Sticky caliper or caliper pistons

Repair/replace the caliper.

Low engine vacuum

Diagnose the low engine vacuum condition.