1998 Chevrolet Truck Lock Cylinder Removal & Installation

Removal Procedures:
1. Remove the steering wheel.
2. Remove the turn signal switch. It is not necessary to completely remove the switch from the column. Pull the switch rearward far enough to slip it over the end of the shaft, but do not pull the harness out of the column.
3. Turn the lock to Run.
4. If necessary, remove the ignition key.
5. If equipped, remove the buzzer switch assembly.
6. Remove the lock retaining screw and remove the lock cylinder. WARNING If the retaining screw is dropped on removal, it may fall into the column, requiring complete disassembly of the column to retrieve the screw.
To install:
7. Rotate the key to the stop while holding onto the cylinder.
8. Push the lock all the way in.
9. Install the screw. Tighten the screw to 40 inch lbs. (5 Nm) for regular columns, 22 inch lbs. (2.5 Nm) for tilt columns.
10. Install the turn signal switch and the steering wheel.

When performing service around the SIR system components or wiring, the SIR system MUST be disabled. Failure to do so could result in possible air bag deployment, personal injury or unneeded SIR system repairs.
When carrying a live inflator module, make sure that the bag and trim cover are pointed away from you. Never carry the inflator module by the wires or connector on the underside of the module. In case of accidental deployment, the bag will then deploy with minimal chance of injury.
When placing a live inflator module on a bench or other surface, always face the bag and trim cover up, away from the surface.
1. Disconnect the negative battery cable and disable the SIR system.
2. Remove the upper and lower shroud, air bag module and the steering column.

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