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:

    Wheel And Tire
    Removal 1. CAUTION: Do not use heat to loosen a seized wheel nut (1012). Heat can damage the wheel and wheel bearings. NOTE: To avoid damage or scratching to the center cap, place facing up when removed. Loosen the wheel nuts. 1. NOTE: To avoid wheel damag ...

    Rear Suspension
    Torque Specifications WARNING: All vehicles are equipped with gas pressurized shock absorbers which will extend unassisted. Do not apply heat or flame to the shock absorbers during removal or component servicing. Failure to follow these instructions can re ...

    Valve Tappets
    Material Removal CAUTION: If removing more than one valve tappet, mark the components removed for correct location. 1. Remove the lower intake manifold. For additional information, refer to Lower Intake Manifold in this section. 2. Remove the push r ...