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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 925 (ANTI-LOCK BRAKE SYSTEM, TRACTION CONTROL SYSTEM & STABILITY CONTROL SYSTEM)REPAIR INSTRUCTIONSREAR WHEEL SPEED SENSOR REPLACEMENT (10.5 AXLE)INSTALLATION PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Installation Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Installation Procedure
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2007 GMC Savana Special, 2007 GMC Savana Camper Special, 2007 GMC Savana, 2007 Chevrolet RV Cutaway, and 2007 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Rear Wheel Speed Sensor
    GM1372892Courtesy of GENERAL MOTORS CORP.
  1. Install the spacer block and the wheel speed sensor.
    2. NOTE: Refer to Fastener Notice .
  2. Install the wheel speed sensor retaining bolt.

    Tighten:  Tighten the bolt to 14 N.m (124 lb in).

  3. Connect the electrical connector.
  4. For the left rear sensor, install the leaf spring anchor plate. Refer to Leaf Spring Replacement .
  5. Lower the vehicle.
  6. Perform a low speed test to ensure the wheel speed sensor is functioning properly:
    1. Start the engine and allow it to idle.
    2. Check to see if the ABS indicator or the traction assist indicator remains illuminated.
    3. If the ABS indicator or the traction assist indicator remains illuminated, DO NOT proceed to drive the vehicle until it is diagnosed and repaired. Check the wheel speed sensor electrical connector to ensure it is not damaged and is installed properly. If the lamp remains illuminated, refer to Symptoms - Antilock Brake System .
    4. Select a smooth, dry, clean, and level road or large lot that is as free of traffic and obstacles as possible.
    5. Drive the vehicle and maintain a speed of at least 16 km/h (10 mph) for at least 5 seconds.
    6. Stop the vehicle and check to see if the ABS indicator or the traction assist indicator is illuminated.
    7. If an indicator is illuminated, refer to Diagnostic Starting Point - Antilock Brake System .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.