Tools you'll likely need:
* Screwdrivers: Phillips head and possibly flathead, various sizes.
* Panel removal tools: To avoid scratching the interior panels. Plastic pry tools are ideal.
* Socket wrench set: Potentially needed depending on the securing method of the lock mechanism.
* New door lock assembly: Make sure you get the correct one for your specific Festiva year and model, including driver's side or passenger's side.
* Penetrating oil (like PB Blaster): To help loosen any rusted or stuck bolts.
* Wire cutters or pliers: Possibly needed to disconnect linkages.
General Steps (These may vary):
1. Interior Panel Removal: Carefully remove the interior door panel. This usually involves removing screws around the armrest, door handle, and possibly under the door pull. Use panel removal tools to avoid damage. The panel is likely clipped in place as well, so gently pry it away.
2. Disconnect Linkages: The door lock mechanism is connected to various linkages (door handle, lock release, etc.). Carefully disconnect these. Take photos or make notes to remember how they're connected for reassembly.
3. Remove the Lock Assembly: Once the linkages are disconnected, you should see the lock assembly itself. It's likely held in place by screws or bolts. Use the appropriate tools to remove these fasteners. Penetrating oil may be helpful if they're stubborn.
4. Install the New Lock Assembly: Carefully align the new lock assembly with the door and attach it using the screws or bolts you removed earlier.
5. Reconnect Linkages: Reconnect the linkages in the same order and orientation as before. Refer to your photos or notes if needed. Ensure everything moves freely.
6. Reinstall the Interior Panel: Reinstall the interior door panel, securing it with the screws and clips.
7. Test the New Lock: Test the new lock assembly to ensure all functions (locking, unlocking, handle operation) work correctly.
Important Considerations:
* Door Locks and Keys: Your new lock assembly will likely require re-keying to match your existing keys or you'll need new keys. A locksmith can help with this. Some assemblies may come pre-keyed to match a specific key code.
* Electrical Connections: Some Festiva models have power locks. If this is the case, there will be electrical connectors you need to carefully disconnect and reconnect.
* Patience: This is not a quick job. Take your time and be careful not to break any clips or damage the door panel.
* Professional Help: If you're not comfortable with this type of repair, consider seeking professional help from a mechanic or auto repair shop.
This is a general guide. Always consult a repair manual specific to your Ford Festiva's year and model for the correct procedure. Improper installation can lead to malfunctioning locks and even damage to your door.
