GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1290258  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the front wheel speed sensor electrical connector.
  3. Danger: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  4. Raise and suitably support the vehicle.
  5. Remove the wheel. Refer to Tire and Wheel Removal and Installation.
  6. Turn the steering wheel to expose the speed sensor. It is located at the rear of the steering knuckle near the tie rod end.
  7. Remove the bolt and the front wheel speed sensor from the steering knuckle.

  8. Object Number: 1290259  Size: SH
  9. 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.
  10. Free the sensor harness from the grommet holders and the clamps and pull it through the fender.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1290258  Size: SH
  1. Install the front wheel speed sensor to the steering knuckle. Secure it with the bolt and tighten to 8 N·m (71 lb in).

  2. Object Number: 1290259  Size: SH
  3. Feed the sensor harness into the engine compartment, insert it into the grommet, and secure the grommet into the hole in the strut tower.
  4. Secure the harness into the grommet holders and the clamps under the fender.
  5. Install the wheel. Refer to Tire and Wheel Removal and Installation.
  6. Lower the vehicle.
  7. Connect the front wheel speed sensor electrical connector.
  8. Connect the negative battery cable.