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:
Pressure Relief
Special Tool(s)
Fuel Pressure Gauge
310-012 (T80L-9974-B)
WARNING: Do not smoke or carry lighted tobacco or open flame of any
type when
working on or near any fuel-related components. Highly flammable mixtures are
always present
and may be ig ...
Installation
1. Inspect the pinion flange seal journal for rust, nicks, and scratches
prior to installing the flange.
Polish the seal journal with fine crocus cloth, if necessary.
2. Lubricate the pinion flange splines.
Use SAE 80W-90 Premium Rear Axle Lubricant XY-80 ...
A/C Compressor Pressure Relief Valve
An A/C compressor pressure relief valve is incorporated into the compressor
A/C manifold and tube to:
relieve unusually high refrigerant system discharge pressure buildups.
For specifications
regarding operating pressure(s), refer to Section.
prevent ...
