Ford Mustang (1999-2004) Service Manual: Brake Booster - Hydro-Boost (Description and Operation)
The Hydro-Boost brake booster is a hydraulically operated brake booster powered by the power steering pump (3A674). The power steering pump provides the fluid pressure to operate both the power brake booster and the power steering gear (3504).
A Hydro-Boost reserve system (accumulator) stores sufficient fluid under pressure to provide at least two power-assisted brake applications in the event the power steering pump fluid flow is interrupted.
For low assist concerns on vehicles equipped with the Hydro-Boost system, refer to Section to check the power steering pump pressure and flow.
The brakes can also be applied manually if the reserve system is depleted.
Any leakage goes directly back to the power steering pump reservoir (3E764).
Brake Booster - Vacuum (Description and Operation)
Power Brake Booster
The vacuum type power brake booster (2005):
is a dual diaphragm, vacuum assisted power brake booster
reduces brake pedal force and travel distance.
is located on ...
Hydro-Boost Bleeding
1. NOTE: The Hydro-Boost power brake booster (2B560) is generally
self-bleeding, and the
following procedure will normally bleed the air from the power brake booster.
Normal operation
of the vehicle ...
Other materials:
Index Card
Place an index card or a piece of paper between the weatherstrip and the
sealing surface, then close
the door. Slowly withdraw the index card or paper after the door is closed and
check the amount of
pressure on the weatherstrip. There should be a medium amo ...
Differential Housing Cover
Removal
1. Raise and support the vehicle.
2. NOTE: Empty the lubricant into a clean container for reuse.
Remove the differential housing cover (4033).
1. Remove the 10 bolts and drain the lubricant from the differential
housing (4010).
2. Remove the d ...
911 Assistâ„¢
WARNING: Unless the 911 Assist setting is set on prior to a
crash, the system will not dial for help which could delay
response time, potentially increasing the risk of serious injury or death
after a crash.
WARNING: Do not wait for 911 Assist to make an emerg ...
