Vacuum Brake Booster: Description and Operation

The power brake booster:
- is a dual 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.