Here's a general overview of the process. This is not a complete, step-by-step guide and may not be applicable to all variations of the 1999 Cavalier. Always consult a repair manual specific to your vehicle's year, make, and model for detailed instructions and diagrams:
Tools You'll Likely Need:
* Repair manual: Crucial for specific instructions and torque specifications.
* Screwdrivers: Phillips and flathead, various sizes.
* Socket set and ratchet: Metric sizes.
* Pliers: Needle-nose and regular.
* Wires: To extend the ignition wiring harness if needed
* Electrical tape: To securely wrap connections.
* Possibly a steering wheel lock removal tool: To release the steering wheel if it locks while working.
* A way to disconnect the battery: Essential for safety.
General Steps (Simplified):
1. Disconnect the battery: This is paramount to prevent accidental shorts and injuries.
2. Remove the steering wheel column shroud: This usually involves removing screws and possibly trim pieces. This will expose the ignition switch.
3. Disconnect the ignition switch wiring harness: Carefully unplug all connectors. Take pictures or make notes of the wiring connections before disconnecting to help with reassembly.
4. Remove the ignition switch: This usually involves removing retaining screws or clips securing the switch to the steering column. Accessing the retaining components can be tricky depending on the particular vehicle. The switch might be held by a retaining nut and a lock plate that often has a small cut-out to release the lockplate.
5. Install the new ignition switch: Carefully align the new switch and reverse the removal steps. Ensure all components are correctly seated and secure.
6. Reconnect the wiring harness: Double-check your wiring connections against your notes or pictures to ensure correct placement.
7. Reconnect the battery:
8. Test the ignition system: Verify that the ignition switch functions correctly, including starting the vehicle and all accessories functioning as they should.
Important Considerations:
* Key programming: Some vehicles require the keys to be programmed to the new ignition switch. You may need a specialized tool or visit a locksmith or dealership for this service.
* Steering column lock: Be mindful of the steering column lock mechanism. If you are struggling to release the locking mechanism you might need a steering wheel lock removal tool and or need to refer to your repair manual as this is important.
* Security system: A faulty ignition switch can trigger your car alarm.
* Wiring diagrams: Refer to wiring diagrams to avoid incorrect wiring connections.
This is a simplified overview. The actual process can vary depending on your specific vehicle. Always consult a repair manual specific to your 1999 Chevy Cavalier before attempting this repair. If you are unsure about any step, it's always best to seek professional help. Improper installation can cause electrical damage, starting issues, and even potential safety hazards.
