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
...
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:
Principles of Operation
There are four main principles involved with the basic theory of
operation:
heat transfer
latent heat of vaporization
relative humidity
effects of pressure
Heat Transfer
If two substances of different temperature are placed near each other,
t ...
Installation
1. Align the blend door driver to the full heat position.
2. Place the temperature control knob in the full WARM position.
3. Attach the cable drive to the control head.
4. Rotate the knob back and forth from full WARM to full COOL.
5. Check the cable ...
Mass Air Flow (MAF) Sensor - 4.6L (2V)
Removal
CAUTION: The mass air flow (MAF) sensor hot wire sensing
element and housing are
calibrated as a unit and must be repaired as a complete assembly. Do not
damage the sensing
element (internal to housing) or possible failure to the mass air f ...
