Here's a general outline of the process. Specific steps and tools may vary slightly depending on your Cavalier's trim level. Always consult a repair manual specific to your vehicle year and model for the most accurate instructions.
Tools you'll likely need:
* New ignition lock cylinder: Make absolutely sure you get the correct one for your 1999 Chevy Cavalier. The part number will be crucial.
* Security Torx bits (likely): Many Cavaliers use security Torx screws. You'll need the proper bit size and type to remove the steering column shrouds.
* Phillips head screwdriver: Possibly needed for some screws.
* Flathead screwdriver: (Possibly) Might be needed for prying or working with trim pieces.
* Needle-nose pliers: Useful for manipulating small parts.
* Socket set (possibly): Some models may require sockets for removing certain parts.
* Wiring diagram (highly recommended): This will help you reconnect the ignition switch harness correctly.
* Repair manual: A service manual specific to your 1999 Chevy Cavalier is invaluable. It will provide detailed diagrams and instructions.
General Steps (This is a simplified overview – consult your repair manual):
1. Disconnect the battery: This is crucial for safety to prevent accidental short circuits.
2. Remove the steering wheel: This often requires a special steering wheel puller tool. Be extremely careful during this step as improper removal can damage the steering wheel or airbag. If you are unsure, seek professional help.
3. Remove the steering column shrouds: Carefully remove the plastic shrouds around the steering column. This usually involves removing several security Torx screws.
4. Remove the ignition switch: This is the most challenging part. You'll likely need to disconnect the wiring harness connected to the ignition switch. Take photos or make notes of the wiring connections before disconnecting anything. The ignition switch itself might be held in place with screws or clips.
5. Install the new ignition lock cylinder: Carefully install the new ignition lock cylinder, ensuring it's seated correctly and all the components are aligned. Reconnect the wiring harness, paying close attention to your notes or photos.
6. Reassemble: Carefully reassemble the steering column shrouds, steering wheel, and any other components removed during the process. Make sure everything is securely fastened.
7. Reconnect the battery: Once everything is reassembled, reconnect the battery.
8. Test the ignition: Turn the key to ensure the ignition works properly and the car starts.
Important Warnings:
* Airbag Safety: Disconnecting the steering wheel involves the airbag system. If you're not familiar with airbag safety procedures, you should absolutely seek professional help. Accidental deployment can cause serious injury.
* Wiring: Incorrectly reconnecting the ignition switch wiring can damage your vehicle's electrical system. Take your time and be meticulous.
* Security: If your Cavalier has an anti-theft system, you may need the proper codes or procedures to avoid issues.
This is a general outline. The exact steps can be different. Always consult a repair manual specific to your 1999 Chevy Cavalier before attempting this repair. If you're not comfortable with automotive repair, it's best to have a qualified mechanic or locksmith perform this work. Improper installation can leave you locked out of your car or cause damage to your vehicle's electrical system.
