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Rear Wheel Speed Sensor: Removal

The rear wheel speed sensor is contained within the hub/bearing assembly. The sensor is not serviceable separately. To replace a damaged rear wheel speed sensor, the entire hub/bearing assembly must be replaced.

WARNING: Make sure vehicle is properly supported and squarely positioned on the hoist. To help avoid personal injury when a vehicle is on a hoist, provide additional support for the vehicle on the opposite end from which components are being removed.
Fig 1: Rear Wheel Speed Sensor
G01943765Courtesy of GENERAL MOTORS CORP.
  1. Raise vehicle on hoist.
  2. Remove rear wheel and tire assembly corresponding to hub being replaced.
  3. Disconnect electrical connector from ABS wheel speed sensor.
  4. Vehicles equipped with rear disc brakes, perform the following:
    1. Remove brake pipe to control arm support bracket.
    2. Remove caliper-to-knuckle fasteners.
    3. Remove caliper, hang from strut spring with mechanic's wire.
      4. Fig 2: Removing Caliper
      G01943766Courtesy of GENERAL MOTORS CORP.
  5. Remove drum/rotor retaining screw.
  6. Remove drum/rotor.
    7. Fig 3: Removing Drum/Rotor
    G01943767Courtesy of GENERAL MOTORS CORP.
  7. Remove hub-to-rear axle control arm attachment nuts. Discard nuts.
  8. Remove hub/bearing assembly.
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