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.

Brake Booster - Hydro-Boost

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:

Rocker Arms - Inspection
CAUTION: Do not attempt to true surfaces by grinding. Check the rocker arm pad, side rails and seat for excessive wear, cracks, nicks or burrs. Check the rocker arm seat bolt for stripped or broken threads. Install new components as ncessary or possible ...

Principles of Operation
NOTE: A new instrument cluster must be reconfigured. Refer to Section. The instrument cluster is a hybrid electronic cluster (HEC). The instrument cluster uses both hardwired and the standard corporate protocol (SCP) communication network to transmit a ...

Changing a road wheel
WARNING: The use of tire sealants may damage your tire pressure monitoring system and should not be used. However, if you must use a sealant, have an authorized dealer install a new tire pressure monitoring system sensor and valve stem. WARNING: See Tire Press ...