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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 857 (ANTILOCK BRAKE SYSTEM)REPAIR INSTRUCTIONSWHEEL SPEED SENSOR REPLACEMENT - REAR (EXCEPT AWD)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

Important:  The rear wheel speed sensors and rings are integral with the hub and bearing assemblies.

If a speed sensor or a ring needs replacement, replace the entire hub and bearing assembly. Refer to REAR WHEEL BEARING/HUB REPLACEMENT (FWD -- DRUM) in Rear Suspension.

  1. Raise and support the vehicle on a suitable hoist.
  2. Remove the rear tire and wheel assembly.
    Fig 1: Removing Rear Wheel Speed Sensor Electrical Connector
    G01500346Courtesy of GENERAL MOTORS CORP.
  3. Remove the rear wheel speed sensor electrical connector located next to the rear strut.
  4. Remove the hub and bearing assembly (1). Refer to REAR WHEEL BEARING/HUB REPLACEMENT (FWD -- DRUM) in Rear Suspension.
Fig 2: Removing Hub & Bearing Assembly
G01500347Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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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.