Rodeo S 2WD L4-2.2L (1999)
Vacuum Brake Booster: Description and Operation
This booster is a tandem vacuum unit with a diaphragm effective diameter 205 mm + 230 mm In normal operating mode, with the service brakes in the
released position, the tandem vacuum booster operates with vacuum on both sides of its diaphragms When the brakes are applied, air at atmospheric
pressure is admitted to one side of each diaphragm to provide the power assist When the service brake is released, the atmospheric air is shut off from
the one side of each diaphragm The air is then drawn from the booster through the vacuum check valve to the vacuum source.
CAUTION:
1. If any hydraulic component is removed or disconnected, it may be necessary to bleed all or part of the brake system.
2. The torque values specified are for dry, unlubricated fasteners.
3. The vacuum booster is not repairable and must be replaced as complete assembly.
