Here's a general overview of the process; however, this is not a substitute for a proper repair manual:
1. Disconnect the Battery: This is crucial to prevent electrical shorts and injury. Disconnect both the positive (+) and negative (-) terminals.
2. Remove the Steering Wheel: This is often necessary to access the ignition switch. This usually involves removing the steering wheel cover, then using a steering wheel puller (a specialized tool) to remove the wheel itself. Be very careful here; the steering wheel is heavy and you'll need to support it safely. You'll also need to note the position of the steering wheel before removing it so you can put it back correctly.
3. Remove the Steering Column Shroud: This is a plastic cover surrounding the steering column. You'll likely need to remove screws or fasteners to access the ignition switch.
4. Remove the Ignition Switch: This is the most complex part. You'll likely find retaining clips, screws, and possibly a wiring harness connected to the ignition switch. Carefully disconnect the wiring harness, noting its position and which wire goes where. Take photos if necessary. You might need special tools to remove the switch itself, depending on its design and the retaining mechanism. Some switches can be carefully removed after disconnecting the wiring, while others may require specialized tools or techniques to release them from their mounting.
5. Install the New Ignition Switch: Once the old switch is out, carefully install the new one, ensuring the wiring harness is correctly reconnected. Double-check all connections.
6. Reassembly: Carefully reassemble the steering column shroud, steering wheel, and any other components you removed.
7. Reconnect the Battery: Reconnect the battery terminals.
Important Considerations:
* Safety: Work in a well-lit area. Always disconnect the battery before starting any electrical work.
* Tools: You'll likely need screwdrivers (Phillips and flathead), possibly a socket set, a steering wheel puller, and potentially specialized tools for the ignition switch itself.
* Wiring: Carefully label or photograph the wiring connections before disconnecting them. Incorrect reconnection can lead to electrical problems.
* Professional Help: If you're uncomfortable performing this repair yourself, it's best to take your Suburban to a qualified mechanic.
This is a simplified overview. Refer to a repair manual for detailed, vehicle-specific instructions. Attempting this repair without proper knowledge and tools can lead to damage to your vehicle and potentially personal injury.
