Tools You'll Likely Need:
* Socket Set: Various sizes, including metric and possibly SAE.
* Ratchets and Extensions: To reach tight areas.
* Screwdrivers: Phillips and flathead, various sizes.
* Wire Strippers/Crimpers: If you need to repair or replace any wiring.
* Test Light or Multimeter: To check wiring connections before and after installation.
* Pry Tools: Plastic pry tools are best to avoid scratching the dash.
* Torque Wrench: To tighten bolts to the manufacturer's specifications (this is crucial).
* Shop Rags: To keep things clean.
* Repair Manual: Absolutely essential!
General Steps (Consult your repair manual for specifics!):
1. Disconnect the Battery: This is the most crucial step. Disconnect both the negative (-) and positive (+) terminals to prevent electrical shorts and potential injury.
2. Steering Wheel Removal (Possibly): Some access to the ignition switch might require partial or complete steering wheel removal. This is usually done by removing the steering wheel retaining nut (after marking its position) and carefully pulling the wheel off the steering column. Be extremely careful during this step, as the airbag (if equipped) can deploy unintentionally. If you're not comfortable doing this, consider seeking professional help.
3. Remove the Steering Column Covers: Accessing the ignition switch often requires removing various trim pieces and covers on the steering column. Use pry tools carefully to avoid damage.
4. Disconnect Electrical Connectors: Locate the electrical connectors attached to the ignition switch. Carefully disconnect these connectors. Take pictures or make notes of their positions for reassembly.
5. Remove the Ignition Switch: The ignition switch itself is usually held in place by screws or a retaining clip. Refer to your repair manual for the exact procedure. It might be necessary to remove the ignition cylinder first.
6. Install the New Ignition Switch: Install the new ignition switch, making sure to align it properly. Tighten the screws or clip securely to the manufacturer's specifications (using your torque wrench).
7. Reconnect Electrical Connectors: Reconnect the electrical connectors, ensuring they are firmly seated and in their correct positions.
8. Reinstall Components: Reinstall the steering column covers, steering wheel (if removed), and any other removed parts, in the reverse order of removal.
9. Reconnect the Battery: Reconnect the battery terminals.
10. Test the Ignition System: Test all ignition functions (start, accessories, etc.) to ensure the new switch is working correctly.
Important Considerations:
* Ignition Key: You will likely need your original key to match the new ignition switch or have a new key cut and programmed to work with it.
* Wiring Diagrams: Your repair manual will have detailed wiring diagrams – use them!
* Professional Help: If you're not comfortable performing this repair, it's best to take your vehicle to a qualified mechanic. Improper installation could result in serious damage or injury.
This is a simplified overview. The specific steps and procedures will vary depending on your vehicle's configuration. Always refer to a 1989 Mustang GT repair manual for precise instructions and safety precautions.
