Vacuum Brake Booster: Description and Operation

The power brake booster:
^ is a two-diaphragm, vacuum-assisted power brake booster.
^ reduces brake pedal pressure and travel distance.
^ is located on the LH side of the bulkhead in the engine compartment, between the brake pedal and brake master cylinder.
^ is divided into separate chambers by the diaphragm
^ will not operate if vacuum is restricted or if any of the vacuum-related power brake components fail.
^ is replaced as an assembly.
If the power assist fails, the brake system will continue to operate with increased brake pedal effort.