Ford Mustang (1999-2004) Service Manual: 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 the LH side of the bulkhead in the engine compartment, between the brake pedal (2455) and the brake master cylinder (2140).
- is divided into separate chambers by the diaphragms.
- will not operate if vacuum is restricted or if any of the vacuum related power brake components fail.
- is installed as an assembly.
If the power assist fails, the brake system will continue to operate with increased brake pedal effort.
Hose and Check Valve
The power brake booster check valve (2365):
- is located on the front of the power brake booster.
- is installed separately; (install a new grommet when installing a new check valve).
- is positioned between the power brake booster and the power brake booster hose.
- closes when the engine is turned off.
- in the closed position, traps engine vacuum in the power brake booster
- retains vacuum to provide several power assisted brake applications with the engine off.


Power Brake Actuation
Torque Specifications
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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 brak ...
Other materials:
Accelerator Cable - 4.6L (2V)
Removal and Installation
1. Push the accelerator cable nylon bushing out of the accelerator pedal and
shaft arm.
2. Remove the bolts retaining the accelerator cable to the dash panel.
3. Disconnect the accelerator cable from the throttle body by rotating ...
Steering System (Description and Operation)
The steering system has a typical rack-and-pinion design consisting of the
following:
Steering System Components - 3.8L Engine (CII Power Steering
Pump)
Steering System Components - 4.6L Engine (CIII Power Steering
Pump)
...
Installation
All vehicles
1. NOTE: Inspect the insulators for wear or damage. Install new
insulators if necessary.
Install the upper insulator on the spring.
2. Install the lower insulator on the lower arm.
3. Install the rear spring. Make sure the pigtail on the low ...
