Brake Booster: Removal
WARNING: This page is about a different car, the 2015 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Do not spill brake fluid on painted or plastic surfaces or damage to the surface may occur. If brake fluid is spilled onto a painted or plastic surface, immediately wash the surface with water.
NOTE:
Removal steps in this procedure may contain installation details.
- 1.WARNING: Before beginning any service procedure in this service information, refer to Safety Warnings in the General Information article. Failure to follow this instruction may result in serious personal injury.
Refer to: Health and Safety Precautions
- 2.
Remove the battery tray. Refer to: Battery Tray
- 4.
Detach the brake tube retainer, disconnect the brake fluid level sensor electrical connector and if equipped, disconnect the clutch master cylinder supply tube.
- 5.NOTE: Before removing the master cylinder, relieve the vacuum in the brake booster or the master cylinder O-ring seal may be drawn into the brake booster, causing brake booster failure and increased brake pedal effort.
Fully apply and release the brake pedal 5 times.
- 6.
- 1.
Disconnect the brake tube fittings.Torque
: 18 lb.ft (25 Nm)
- 2.
Remove the nuts and remove the brake master cylinder and brake tubes as an assembly. Discard the nuts.Torque
: 159 lb.in (18 Nm)
- 1.
- 7.
-
NOTE: Make sure that the master cylinder-to-booster seal is removed with the master cylinder.
Discard the O-ring seal.
-
- 8.
- 1.
Disconnect the brake booster vacuum sensor electrical connector.
- 2.
Detach the vacuum check valve from the booster and position aside.
- 1.
- 10.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.
Refer to: Stoplamp Switch