Before You Begin:
* Disconnect the negative battery cable. This is crucial to prevent electrical shocks and short circuits.
* Gather your tools: You'll likely need screwdrivers (Phillips and possibly flathead), pliers, possibly a socket set, and possibly a wiring harness connector removal tool. Again, your repair manual will specify.
* Obtain the correct replacement ignition switch. Make sure it's the right part for your specific vehicle. Your VIN number will help ensure you get the correct part.
General Steps (This is NOT a complete guide, use a repair manual!):
1. Remove the steering wheel. This is often the first major hurdle. You'll need a steering wheel puller and likely to disconnect the horn wiring. Be cautious and follow your repair manual precisely here. Misaligning the steering wheel can be dangerous.
2. Access the ignition switch. This typically involves removing the steering column shroud or other trim pieces. The exact procedure varies significantly depending on the model and trim level of your Cougar. Your repair manual will show you how to do this.
3. Disconnect the wiring harness. Carefully disconnect the electrical connectors from the old ignition switch. Take photos or make notes of the connections before disconnecting anything to help with reassembly. A wiring diagram from your repair manual will be essential.
4. Remove the old ignition switch. This usually involves removing retaining screws or clips. The switch may be held in place with a special tool or technique. Again, your repair manual will provide detailed instructions.
5. Install the new ignition switch. Carefully align the new switch and secure it in place, following the reverse order of removal.
6. Reconnect the wiring harness. Double-check that all connectors are correctly seated and secure. Refer to your photos or notes and your repair manual to ensure correct wiring.
7. Reinstall the steering wheel. Make sure to properly align the steering wheel and tighten it according to the specifications in your repair manual.
8. Reconnect the battery cable.
9. Test the ignition. Turn the key to check that the ignition system works properly and that the car starts.
Important Considerations:
* Safety First: Always disconnect the negative battery cable before working on any electrical component.
* Repair Manual: A repair manual specific to your 1995 Mercury Cougar is indispensable. It will provide detailed instructions, diagrams, and torque specifications.
* Professional Help: If you're not comfortable working on your car's electrical system, consider taking it to a qualified mechanic. Replacing the ignition switch incorrectly can lead to serious problems.
This is a simplified overview. Attempting this repair without a detailed repair manual is strongly discouraged. The steps involved can vary significantly between models and even trim levels of the 1995 Mercury Cougar. Improper installation can result in damage to your vehicle or personal injury. Use a repair manual for precise and safe instructions.
