Wheel Speed Sensor

Wheel speed sensor is attached to steering knuckle at front. Rear wheel speed sensor is mounted over a toothed sensor ring. See Fig 1 or Fig 2 . Air gap is not adjustable and sensor is not repairable. Front outside drive axle or rear hub and bearing assembly must be replaced if sensor ring is damaged.

Fig 1: Front Wheel Speed Sensor

Courtesy of GENERAL MOTORS CORP.

Fig 2: Rear Wheel Speed Sensor

Courtesy of GENERAL MOTORS CORP.