Removal Procedure
Important: The wheel speed sensor and splash shield are replaced as one part. Do not attempt to separate and reattach the sensor from the splash shield.
Important: This vehicle is equipped with a either a 7300 lb. GVW (C6A), 7700 lb. GVW (C3F) or 8600 lb. GVW (C6P) suspension system. The 7300 lbs vehicle uses a stamped/welded upper control arm, and the 7700 lbs and 8600 lbs vehicles use a steel bar type upper control arm. The wheel speed sensor harness wire is attached and routed over the upper control arm in two different ways. Careful attention to these differences should be noted before removing any components, to assure proper reassembly.
- Raise and support vehicle.
- Remove the tire and wheel. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION .
- Remove the brake caliper. Refer to BRAKE CALIPER .
- Remove the hub and rotor. Refer to BRAKE ROTOR .
- Disconnect the wheel speed sensor electrical connector and detach the rosebud clip from the frame.
Important: Notice the position of the sensor wire clip on the shock tower. The sensor wire clip must be reinstalled in the same position, at approximately 45 degree angle to the centerline of the vehicle.
- Remove bolt (9,15) and washer which attaches the sensor wire clip at the shock tower.
- Remove the rosebud clip (2) on upper control arm (3) (7300 lb. GVW (C6A) only).
- Remove the bolt (7,14) and nut (4,11) which attaches the sensor wire clip (2,9) at the upper ball joint (5,12).
Important: The WSS (3) is held in place to the splash shield (1) with a plastic alignment tab (7) and a nut/bolt (2), located at the top hole in the WSS. It is not necessary to remove the top WSS bolt/nut (2) in order to remove the wheel speed sensor and splash shield assembly.
- Remove the splash shield mounting bolts (4).
- Remove the wheel speed sensor and splash shield assembly.
- Remove the splash shield gasket (5).
- Clean the gasket (5) and knuckle surfaces (6) thoroughly with a clean dry cloth.