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Home >> Ford >> 2021 >> Mustang Mach 1, Standard Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Power Brake Actuation - Brake Booster >> Removal And Installation >> Brake Booster - GT500 >> Removal

Brake Booster - GT500: Removal

NOTE: If the fluid is spilled on the paint, immediately wash the affected area with cold water.
NOTE: Removal steps in this procedure may contain installation details.
  1. Disconnect the battery cables. Refer to: Battery Disconnect and Connect
  2. Remove the strut tower cross brace. Refer to: Strut Tower Cross Brace - GT500
  3. Detach the vacuum check valve from the booster and position aside.
    GFD599610Courtesy of FORD MOTOR COMPANY
    1. Disconnect the brake fluid level sensor electrical connector.
    2. Detach the wiring harness retainer from the brake fluid reservoir.
    GFD599576Courtesy of FORD MOTOR COMPANY
  4. NOTE: Make sure that all openings are sealed.

    Disconnect the 2 brake tubes at the HCU.

    Torque: 30 lb.ft (40 Nm)

    GFD599603Courtesy of FORD MOTOR COMPANY
  5. Unclip the brake tubes.
    GFD599590Courtesy of FORD MOTOR COMPANY
  6. Remove and discard the 2 master cylinder nuts. Remove the master cylinder and brake tubes.

    Torque: 17 lb.ft (23 Nm)

    GFD599604Courtesy of FORD MOTOR COMPANY
  7. Disconnect the vacuum sensor electrical connector.
    GFD599605Courtesy of FORD MOTOR COMPANY
  8. NOTE: Do not service the brake pedal or brake booster without first removing the stoplamp switch. This switch must be removed with the brake pedal in the at-rest position. The switch plunger must be compressed for the switch to rotate in the bracket. Attempting to remove the switch when the plunger is extended (during pedal apply) will result in damage to the switch.

    Remove the stop lamp switch. Refer to: Stoplamp Switch

  9. NOTE: The booster push rod clevis-locking pin is a one-time use only part. Any time the booster push rod clevis-locking pin is removed, a new booster push rod clevis-locking pin should be used.

    Remove and discard the booster push rod clevis-locking pin and position aside the booster push rod.

    GFD599597Courtesy of FORD MOTOR COMPANY
  10. Remove and discard the 4 nuts.

    Torque: 17 lb.ft (23 Nm)

    GFD599607Courtesy of FORD MOTOR COMPANY
  11. Remove the brake booster.
GFD599609Courtesy of FORD MOTOR COMPANY