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 DIAGNOSISSTEERINGSTEERING WHEEL & STEERING COLUMNREPAIR INSTRUCTIONSIGNITION LOCK CYLINDER CASE REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD
Installation Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
- Align the ignition lock cylinder case assembly (1) with the steering column tilt head assembly.NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
- Secure the ignition lock cylinder case assembly (1) to the steering column using 3 pan head tapping screws (2).
Tighten
Tighten the screws to 7 N.m (62 lb in).
- Install the ignition switch assembly. Refer to IGNITION SWITCH REPLACEMENT .
- Install the turn signal cancel cam and upper bearing. Refer to TURN SIGNAL CANCEL CAM AND STEERING SHAFT UPPER BEARING SPRING REPLACEMENT .
- Enable the SIR system. Refer to DISABLING & ACTIVATING AIR BAG SYSTEM in Air Bag Restraint Systems.
RENDER: 1.0x
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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.