Contour V6-153 2.5L DOHC VIN L SFI (1997)
Vacuum Brake Booster: Description and Operation
DESCRIPTION - The diaphragm-type power brake booster:
^
is self-contained.
^
is mounted on the engine side of the dash panel.
^
uses engine intake manifold vacuum and atmospheric pressure for its power.
^
utilizes a power brake booster check valve to provide temporary power assist when the vacuum source is reduced.
SERVICING
^
The hose is serviced as an assembly with the check valve.
^
The power brake booster check valve and grommet are serviced separately.
^
The power brake booster is serviced only as an assembly and must be replaced with a new unit if it becomes damaged or inoperative.