XC90 AWD V8-4.4L VIN 85 B8444S (2005)
Brake Booster Vacuum Sensor: Service and Repair
Pedal sensor power brake booster, replacing
Note! The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the
essential information in the illustrations is always correct.
Press the brake pedal a few times until the pedal becomes stiff and rises slightly. This releases the vacuum in the brake servo and thus prevents the
O-ring from being sucked in when the pedal position sensor is removed.
Removing pedal position sensor
Slacken off the snap ring around the mounting on the sensor slightly. Insert a narrow screwdriver or wedge. Press one end of the snap ring in
approximately 10 mm. Press radially backwards in the groove in the snap ring.
Pull out the sensor slightly and disconnect the connector. Remove the sensor and the O-ring.
Installing pedal position sensor