Navigator 2WD V8-5.4L SOHC VIN L (1999)
Vacuum Brake Booster: Description and Operation
The power brake booster:
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is a dual diaphragm, vacuum-assisted power brake booster.
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reduces brake pedal pressure and travel distance.
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is located on the LH side of the bulkhead in the engine compartment, between the brake pedal and brake master cylinder.
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is divided into separate chambers by the diaphragm.
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will not operate if vacuum is restricted or if any of the vacuum-related power brake components fail.
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is replaced as an assembly.
If the power assist fails, the brake system will continue to operate with increased brake pedal effort.
