Here's a general outline of the process, but it's crucial to verify each step with your repair manual:
1. Disconnect the Battery: This is the most important safety step. Disconnect the negative (-) terminal first to prevent short circuits.
2. Steering Wheel Removal (Possibly): In some cases, you may need to remove the steering wheel to access the ignition switch. This requires specialized tools and is a more advanced procedure. Check your repair manual; it might not be necessary.
3. Column Shroud Removal: The ignition switch is usually located behind a plastic shroud surrounding the steering column. You'll likely need to remove screws and possibly some clips securing this shroud. Carefully pry it away, noting how it comes apart for reassembly.
4. Wiring Harness Disconnection: Once the shroud is off, you'll see the ignition switch. There will be a wiring harness connected to it. Carefully unplug the connector(s). It's a good idea to take pictures or make notes of the wiring arrangement before disconnecting anything.
5. Ignition Switch Removal: The ignition switch itself is usually held in place by screws or a retaining clip. Again, your repair manual will show you exactly how it's secured. Remove the fasteners. The switch might be slightly stubborn; gently but firmly work it free. Take note of how it comes out so you can put it back in correctly.
6. Replacement (if applicable): If you're replacing the switch, install the new switch in reverse order of removal. Ensure all connectors are properly seated.
7. Reassembly: Reassemble everything in reverse order of disassembly, making sure all screws and clips are securely fastened. Reconnect the battery.
Important Considerations:
* Repair Manual: A factory service manual or a reputable aftermarket repair manual specific to your 1991 Chevy Cavalier 2.2L is absolutely essential. These manuals will provide detailed diagrams and instructions specific to your vehicle.
* Tools: You'll need a set of screwdrivers (likely Phillips and possibly flathead), possibly a trim removal tool to avoid scratching plastic, and potentially a steering wheel puller (if needed).
* Ignition Position: Make sure the ignition key is in the "OFF" position before you begin any work.
* Professional Help: If you're uncomfortable with any part of this process, it's best to take your vehicle to a qualified mechanic. Incorrect installation can result in serious problems.
This is a complex job that should only be undertaken if you have the necessary experience and tools. Improper installation could lead to damage to your vehicle's electrical system or even leave you locked out of your car. Always prioritize safety and consult your repair manual.
