Ford Mustang (1999-2004) Service Manual: Brake Booster - Vacuum (Description and Operation)

Ford Mustang (1999-2004) Service Manual / Brake System / Power Brake Actuation / Brake Booster - Vacuum (Description and Operation)

Power Brake Booster

Brake Booster - Vacuum

 

Brake Booster - Vacuum

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.

Hose and Check Valve

 

Hose and Check Valve

    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:

    Removal
    1. Remove the rear defrost connectors if necessary. 2. Remove the nuts retaining the well sling and convertible top tacking strips. 3. Remove the three tacking strips. 4. Mark the top of the convertible top skin around the top of all three tacking s ...

    Stay Pad - Convertible Top
    Removal 1. Remove the convertible top material. For additional information, refer to Convertible Top Material in this section. 2. Remove the rear window glass. For additional information, refer to Convertible Top Assembly- Rear Window Glass in this section. ...

    Assembly
    1. Install the valve stem seals. 2. Install the valves and the valve springs. 3. CAUTION: Make sure the tool is seated correctly on the valve spring. Apply a small amount of air at a time. This will prevent the tool from shifting and causing damage to the ...