Safety First:
* Disconnect the battery negative terminal. This is crucial to prevent accidental shorts and shocks.
* Have the correct replacement ignition switch. Ensure you get the right part for your specific vehicle. The part number is essential.
* Gather tools: You'll likely need various screwdrivers (Phillips and flathead), possibly a socket set, pliers, and potentially a wiring diagram for your specific year and model El Camino.
Steps:
1. Access the Steering Column: This usually involves removing the steering wheel. This requires a steering wheel puller, which you might need to rent or borrow. Consult a repair manual for the proper procedure; damaging the steering column is very possible if done incorrectly. *Remember the position of the wheel before removal.*
2. Disconnect the Wiring Harness: Carefully disconnect the wiring harness connectors from the ignition switch. Take pictures or make notes of the wire locations before disconnecting to ensure correct reassembly. A wiring diagram will be invaluable here.
3. Remove the Ignition Switch: Once the wiring is disconnected, you'll need to access and remove the ignition switch itself. This often involves removing screws or retaining clips holding the switch in place. The exact method depends on the column's design. The tilt mechanism might require some disassembly to fully access the switch.
4. Inspect the Column: While the switch is out, closely inspect the column for wear and tear, especially around the tilt mechanism. This is a good time to lubricate any moving parts if needed.
5. Install the New Ignition Switch: Carefully install the new ignition switch, making sure it's properly seated and aligned.
6. Reconnect the Wiring Harness: Reconnect the wiring harness, ensuring each wire is in its correct location. Refer to your notes or wiring diagram.
7. Reassemble: Carefully reassemble the steering column, paying close attention to how it was initially taken apart. This includes reinstalling the tilt mechanism, if necessary.
8. Reinstall the Steering Wheel: Carefully reinstall the steering wheel, ensuring it's correctly aligned.
9. Reconnect the Battery: Reconnect the battery negative terminal.
10. Test the Ignition: Test the ignition switch to make sure it functions correctly in all positions (start, accessory, etc.).
Important Considerations:
* Repair Manual: A Haynes or Chilton repair manual for your 1971 Chevy El Camino is highly recommended. These manuals provide detailed instructions and diagrams specific to your vehicle.
* Tilt Steering Mechanism: Be extra cautious when disassembling and reassembling the tilt steering mechanism. It's a complex system, and incorrect reassembly can lead to malfunction or damage.
* Wiring Diagram: A wiring diagram is crucial for proper reconnection of the ignition switch wiring. These can sometimes be found online, but a repair manual is the best source.
Disclaimer: This is a general guide. Improper repair can result in damage to your vehicle or personal injury. If you are not comfortable performing this repair yourself, it's best to consult a qualified mechanic.