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Home >> Ford >> 2018 >> Mustang GT, Standard Trans >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Power Brake Actuation - Brake Booster >> Removal And Installation >> Brake Booster - 2.3L EcoBoost (231kW/314PS) >> Removal

Brake Booster - 2.3L EcoBoost (231kW/314PS): Removal

NOTE: If the fluid is spilled on the paintwork, the affected area must be immediately washed down with cold water.
NOTE: Removal steps in this procedure may contain installation details.

All vehicles 

  1. Remove the cowl panel grill. Refer to: Cowl Panel Grille .
  2. Detach the vacuum check valve from the booster and position aside.
    GFD284916Courtesy of FORD MOTOR COMPANY

    Vehicles with manual transmission 

  3. Remove the brake fluid reservoir cap.
    GFD284895Courtesy of FORD MOTOR COMPANY
  4. Using a suitable suction device, syphon the brake fluid from the brake fluid reservoir.
    GFD284896Courtesy of FORD MOTOR COMPANY
  5. Disconnect the clutch master cylinder tube.
    GFD284897Courtesy of FORD MOTOR COMPANY
  6. Detach the clutch master cylinder tube bracket from the master cylinder studs.
    GFD284905Courtesy of FORD MOTOR COMPANY

    All vehicles 

  7. Detach the battery cable retainer.
    GFD284917Courtesy of FORD MOTOR COMPANY
  8. Remove the 5 bolts, 4 nuts and the cowl extension.

    Torque: Bolts: 26 lb.ft (35 Nm) Nuts: 41 lb.ft (55 Nm)

    GFD284918Courtesy of FORD MOTOR COMPANY
    1. Disconnect the brake fluid level sensor electrical connector.
    2. Detach the wiring harness retainer from the brake fluid reservoir.
    GFD284899Courtesy of FORD MOTOR COMPANY
  9. Disconnect the 2 brake tubes at the HCU.

    Torque: 30 lb.ft (40 Nm)

    GFD284919Courtesy of FORD MOTOR COMPANY
  10. Unclip the brake tubes.
    GFD284907Courtesy of FORD MOTOR COMPANY
  11. Remove and discard the 2 master cylinder nuts. Remove the master cylinder and brake tubes.

    Torque: 17 lb.ft (23 Nm)

    GFD284920Courtesy of FORD MOTOR COMPANY
  12. Disconnect the vacuum sensor electrical connector.
    GFD284921Courtesy of FORD MOTOR COMPANY
  13. Detach and position aside the fuel pressure line from intake manifold clip.
    GFD284922Courtesy of FORD MOTOR COMPANY
  14. 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 .

  15. 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.

    GFD284914Courtesy of FORD MOTOR COMPANY
  16. Remove and discard the 4 nuts.

    Torque: 17 lb.ft (23 Nm)

    GFD284923Courtesy of FORD MOTOR COMPANY
  17. Remove the brake booster.
GFD284924Courtesy of FORD MOTOR COMPANY