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Home >> Chevrolet >> 2004 >> Optra Base, Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Repair Instructions >> Front Wheel Speed Sensor Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: View Of Front Wheel Speed Sensor And Bolt
    GM1290258Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  1. Disconnect the negative battery cable.
  2. Disconnect the front wheel speed sensor electrical connector.
    3. CAUTION: Refer to Vehicle Lifting Caution in Cautions and Notices.
  3. Raise and suitably support the vehicle.
  4. Remove the wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  5. Turn the steering wheel to expose the speed sensor. It is located at the rear of the steering knuckle near the tie rod end.
  6. Remove the bolt and the front wheel speed sensor from the steering knuckle.
    7. Fig 2: View Of Speed Sensor Harness, Strut Tower And Hydraulic Pipe
    GM1290259Courtesy of GENERAL MOTORS CORP.
  7. Free the feed-through grommet for the speed sensor harness and the hydraulic pipe from the strut tower. Remove the speed sensor harness from it so that the connector can pass through the hole in the strut tower.
  8. Free the sensor harness from the grommet holders and the clamps and pull it through the fender.
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