Crown Victoria V8-281 4.6L SFI (1998)
Vacuum Brake Booster: Description and Operation
WARNING: BRAKE FLUID CONTAINS POLYGLYCOL ETHERS AND POLYGLYCOLS. AVOID CONTACT WITH EYES. WASH
HANDS THOROUGHLY AFTER HANDLING. IF BRAKE FLUID CONTACTS EYES, FLUSH EYES WITH RUNNING WATER FOR 15
MINUTES. GET MEDICAL ATTENTION IF IRRITATION PERSISTS. IF TAKEN INTERNALLY, DRINK WATER AND INDUCE
VOMITING. GET MEDICAL ATTENTION IMMEDIATELY.
The diaphragm-type power brake booster:
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is self-contained.
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is mounted on the engine side of the dash panel.
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uses engine intake manifold vacuum and atmospheric pressure for its power.
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must be replaced with a new power brake booster if it becomes damaged or inoperative.
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utilizes a power brake booster check valve to provide temporary power assist when the vacuum source is reduced.
The power brake booster check valve and grommet are serviced separately. The hose is serviced as an assembly with the check valve.
The power brake booster is serviced only as an assembly.
