Removal Procedure

Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Disconnect the electrical connector from the front wheel speed sensor.

Fig 1: View Of Front Wheel Speed Sensor Electrical Connector
Courtesy of GENERAL MOTORS CORP.
Remove the wheel speed sensor retaining bolt.
Remove the wheel speed sensor from the steering knuckle. If the sensor will not slide out of the knuckle perform the following steps:
1. Remove the brake rotor to access the other side of the knuckle. Refer to Brake Rotor Replacement in Disc Brakes.
2. Using a blunt punch, or equivalent tool, push the sensor from the outboard side of the knuckle.
Fig 2: View Of Front Wheel Speed Sensor
Courtesy of GENERAL MOTORS CORP.
Inspect the removed wheel speed sensor and the steering knuckle to ensure that the sensor's locating pin has not broken off in the locating hole of the knuckle. If the locating pin remains in the locating hole of the knuckle, perform the following steps.
1. Remove the brake rotor, if it has not already been removed, to access the other side of the knuckle. Refer to Brake Rotor Replacement in Disc Brakes.
2. Using a blunt punch, or equivalent tool, remove the broken locating pin from the outboard side of the knuckle.
3. If necessary, clean the locating hole in the knuckle using sand paper wrapped around a screwdriver, or other suitable tool. Never attempt to enlarge the hole.