Operation CHARM: Car repair manuals for everyone.
Home >> Ford >> 2012 >> Expedition 2WD V8-5.4L >> Repair and Diagnosis >> Brakes and Traction Control >> Power Brake Assist >> Brake Booster Vacuum Sensor >> Service and Repair
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Brake Booster Vacuum Sensor: Service and Repair




Brake Booster Vacuum Sensor










1. Relieve the vacuum in the brake booster by pressing and releasing the brake pedal a minimum of 5 times with the engine not running.

2. Detach the vacuum supply hose from the brake booster vacuum sensor.

3. Disconnect the vacuum sensor electrical connector and remove the vacuum sensor.

4. NOTE: To allow proper drainage of any moisture, the vacuum sensor must be installed in the same position and orientation as removed.

To install, reverse the removal procedure.

pro multis · About Operation CHARM