Breeze L4-2.4L VIN X (2000)
OPERATION
The power brake booster is vacuum operated. The vacuum is supplied from the intake manifold on the engine through the power brake booster check
valve.
As the brake pedal is depressed, the power boosters input rod moves forward. This opens and closes valves in the power brake booster, allowing
atmospheric pressure to enter on one side of a diaphragm. Engine vacuum is always present on the other side. This difference in pressure forces the
output rod of the power booster out against the primary piston of the master cylinder. As the pistons in the master cylinder move forward this creates
the hydraulic pressure in the brake system.
Different systems and engine combinations require different vacuum hose routings.