Tools You'll Likely Need:
* Socket set (various sizes)
* Wrenches (various sizes)
* Screwdrivers (Phillips and flathead)
* Pliers
* Ratchet and extensions
* Possibly a torque wrench
* Trim removal tools (plastic pry tools)
* Shop rags or towels
* Possibly a helper
Steps (General Outline - Consult your repair manual for specifics!):
1. Disconnect the Battery: This is crucial to prevent electrical shorts and shocks. Disconnect the negative (-) terminal first.
2. Access the Wiper Motor: This is usually located under the cowl (the plastic panel under the windshield). You'll likely need to remove the wiper arms (after disconnecting the battery!), the cowl panel itself, and possibly some other components to gain access. This involves removing various screws, clips, and potentially nuts and bolts holding the cowl and other trim pieces in place. Be careful not to break any plastic clips.
3. Disconnect Electrical Connections: Locate the electrical connector(s) going to the wiper motor. Carefully disconnect them. Take photos or make notes of how they are connected to avoid confusion during reassembly.
4. Disconnect Linkage: The wiper motor is connected to the wiper arms via a linkage system. This will need to be disconnected. Again, take photos or make notes of how it's put together.
5. Remove the Wiper Motor: Once the electrical connections and linkage are disconnected, the motor itself should be relatively easy to remove. It's likely held in place by bolts or nuts.
6. Install the New Wiper Motor: Carefully reverse the removal process to install the new motor. Make sure everything lines up correctly.
7. Reconnect Linkage: Reattach the linkage, ensuring proper alignment and function.
8. Reconnect Electrical Connections: Carefully reconnect the electrical connectors.
9. Reinstall Cowl Panel and Wiper Arms: Reinstall the cowl panel and wiper arms, making sure everything is securely fastened.
10. Reconnect Battery: Reconnect the battery's negative (-) terminal, then the positive (+) terminal.
11. Test the Wiper Motor: Turn on your wipers and check for proper operation. If they don't work, double-check all connections and the linkage.
Important Considerations:
* Repair Manual: A repair manual is essential. It will provide detailed diagrams and torque specifications, preventing damage to your vehicle.
* Parts: Ensure you get the correct wiper motor for your 1995 Mercury Grand Marquis. The wrong motor may not fit or function properly.
* Safety: Always disconnect the battery before working on electrical components.
* Patience: This is not a quick job. Take your time and be methodical to avoid mistakes.
If you're not comfortable performing this repair yourself, it's best to take your car to a qualified mechanic. Attempting this repair without the necessary knowledge and tools could lead to further damage or injury.
