Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 633 (REAR WHEEL STEERING SYSTEM)REPAIR INSTRUCTIONSREAR POSITION SENSOR REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Installation Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Important: Make sure the O-ring (1) is installed.
- Install the rear wheel position sensor (2) to the steering gear.
Important: Be careful to maintain the position of the replacement sensor.
- Remove the pin retaining the position of the new sensor and immediately install the sensor to the steering gear.
- Install the rear wheel position sensor retaining bolts. Apply LOCTITE 242 blue. Tighten the bolts to 4 N.m (35 in lbs).
- Install the rear wheel position sensor cover (4).
- Connect the electrical connector (1).
- Install the steering gear protection shield (1) and retaining bolts (3). Tighten the steering gear protection shield retaining bolts to 180 N.m (132 ft lbs).
- Lower the vehicle.
- Perform a four wheel alignment. Refer to SPECIFICATIONS .
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.