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Home >> GMC >> 2001 >> C3500 HD 6.5 F, Standard >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Repair Instructions >> Wheel Speed Sensor Replacement (4WD) >> Installation Procedure

Installation Procedure

  1. Plug the WSS bore to prevent debris from falling into the hub.
  2. Using a wire brush or equivalent, clean the WSS mounting surface on the hub to remove any rust or corrosion.
  3. Apply a thin layer of wheel bearing lubricant, GM P/N 01051344 to the hub surface and the sensor O-ring prior to sensor installation.
    4. Fig 1: Identifying Brake/Hub Components
    GM379487Courtesy of GENERAL MOTORS COMPANY
  4. Install the WSS (5) into the hub/bearing assembly (4) shown on the 2500/3500 series. Ensure that the sensor is seated flat against the hub.
    5. Fig 2: View Of Wheel Speed Sensor Mounting Bolt
    GM924317Courtesy of GENERAL MOTORS COMPANY
  5. Refer to FASTENER NOTICE in Cautions and Notices.

    Install the WSS mounting bolt.

    Tighten 

    Tighten the WSS mounting bolt to 13 N.m (115 lb in).

    6. Fig 3: View Of Wheel Speed Sensor Cable And Connectors
    GM913362Courtesy of GENERAL MOTORS COMPANY
  6. Install the WSS cable mounting clip to the knuckle.
  7. Install the WSS cable mounting clip to the upper control arm.
  8. Install the WSS cable mounting clip to the frame attachment point.
  9. Connect the WSS cable electrical connector.
    10. Fig 4: Front Brake & Hub Assembly (2WD)
    GM885802Courtesy of GENERAL MOTORS COMPANY
  10. Install the brake rotor (2) shown on the 1500 series. Refer to Front Brake Rotor Replacement in Disc Brakes.
  11. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  12. Perform the Diagnostic System Check - ABS .
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