XJ (X308) V8-4.0L SC (2003)
/v8-4.0l_sc/Page-995001.png)
Vacuum Brake Booster: Description and Operation
Brake Booster
^
The brake booster provides assistance by reinforcing the driver's effort when braking. The reinforced assistance provided by the booster is
proportional to the driver's effort applied to the brake pedal.
^
The brake force applied by the driver is increased by the booster in a ratio of 6.5:1.
^
The vacuum used to operate the booster is formed in the engine's intake manifold. The booster is connected to the intake manifold by a hose.
^
The booster is fail-safe therefore, if a fault develops in the vacuum unit, the braking system will still function. However, the driver will have to
apply a greater force to the brake pedal to slow down the vehicle.
