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:
Fittings - Vapor Tube
Disconnect
1. WARNING: The evaporative emission system contains fuel vapor and
condensed
fuel vapor. Although not present in large quantities, it still presents the
danger of
explosion or fire. Disconnect the battery ground cable from the battery to
minimiz ...
Gearshift Rail and Fork
Disassembly and Assembly
1. Using a 5/32-inch drift and a hammer, remove and discard the split pin.
Slide the shift fork from
the shift rail.
2. Remove the gearshift fork inserts.
3. CAUTION: Support the shift rail to prevent damage to the parts.
Positio ...
Electronic compass
The compass heading displays in the center-integrated display.
Note: Driving near large buildings, bridges, power lines and powerful
broadcast antenna may affect the compass reading. Magnetic or metallic
objects placed in, on or near your vehicle may also aff ...
