Chevrolet Silverado / GMC Sierra. Service manual — part 726

REAR WHEEL SPEED SENSOR REPLACEMENT

2

Wheel Speed Sensor Harness Clip
Procedure:
Release the wheel speed sensor harness clip from the frame.

3

Wheel Speed Sensor Harness Clip
Procedure:
Release the wheel speed sensor harness clip from the upper control arm.

4

Wheel Speed Sensor Harness Clip
Procedure:
Release the wheel speed sensor harness clip from the brake hose bracket.

5

Wheel Speed Sensor Bolt

Tighten: 17 N.m (13 lb ft)

NOTE:

Refer to Fastener Notice .

6

Wheel Speed Sensor
Procedure:
Perform the Diagnostic System Check - Vehicle .

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 11: View Of Rear Wheel Speed Sensor & Components
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and

Installation .

3. Remove the brake rotor. Refer to Rear Brake Rotor Replacement (JD9) or Rear

Brake Rotor Replacement (JH6) or Rear Brake Rotor Replacement (JH7) .

CAUTION:

Refer to Brake Dust Caution .

1

Wheel Speed Sensor Electrical Connector

Procedure

1. Disconnect the electrical connector.

2. Release the wheel speed sensor electrical connector clip from the frame

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

REAR WHEEL SPEED SENSOR RING REPLACEMENT

Tools Required

J 8092 Driver Handle. See Special Tools.

J 21128 Axle Pinion Oil Seal Installer. See Special Tools.

J 23690 Bearing Installer. See Special Tools.

J 2619-01 Slide Hammer. See Special Tools.

J 45857 Tone Wheel and/or Bearing Remover. See Special Tools.

J 45860 Tone Ring Installer. See Special Tools.

Removal Procedure

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and

Installation .

3. Remove the rear wheel speed sensor. Refer to Rear Wheel Speed Sensor Replacement.

4. Remove the rear axle housing cover. Refer to Rear Axle Housing Cover and Gasket

Replacement .

5. Remove the axle shaft. Refer to Rear Axle Shaft Replacement (8.6 Inch Axle w/Drum

Brake w/VSES) or Rear Axle Shaft Replacement (8.6 Inch Axle w/Drum Brakes w/o

rail.

2

Wheel Speed Sensor Harness Clip
Procedure:
Release the wheel speed sensor harness clip from the frame rail.

3

Wheel Speed Sensor Harness Clip
Procedure:
Release the wheel speed sensor harness clip from the rear axle.

4

Wheel Speed Sensor Bolt

Tighten: 9 N.m (80 lb in)

NOTE:

Refer to Fastener Notice .

5

Wheel Speed Sensor
Procedure:
Perform the Diagnostic System Check - Vehicle .

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

VSES) or Rear Axle Shaft Replacement (8.6, 9.5 Inch Axles w/VSES) .

Fig. 12: Removing Wheel Speed Sensor Ring From Axle Housing
Courtesy of GENERAL MOTORS CORP.

6. Remove the axle shaft seal, the bearing and the wheel speed sensor ring from the axle

housing using the J 45857 (1) and the J 2619-01 (2). See Special Tools.

Installation Procedure

2008 Chevrolet Silverado 1500

2008 BRAKES Antilock Brake System - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado