1. Preparation:
* Safety First: Park your Grand Marquis on a level surface, engage the parking brake firmly, and turn off the ignition.
* Gather Supplies: Have your new wiper blades ready. It's helpful to have a clean rag or paper towel handy to wipe away any dirt.
2. Removing the Old Wiper Blades:
* Locate the Wiper Arm: Find the metal arm connected to the wiper blade.
* Release the Blade: Most Grand Marquis models use a push-button or hook system.
* Hook Type: There's usually a small tab or lever near the blade's connection to the arm. You might need to press this tab or lever while pulling the blade away from the arm.
* Push-Button (Bayonet): Press the button or lever on the wiper arm connector. This will usually release the blade. Some require you to slightly lift the blade away from the windshield while depressing the release.
* Carefully remove the old wiper blade. Set it aside.
3. Installing the New Wiper Blades:
* Check Compatibility: Make sure your new blades are the correct size and type for your Grand Marquis. The driver's side blade is typically longer than the passenger's side blade. Consult your owner's manual or a parts store for the correct sizes.
* Attach the New Blade: Align the new wiper blade with the wiper arm connector.
* Hook Type: Simply slide the new blade onto the hook until it clicks into place.
* Push-Button (Bayonet): Push the new blade onto the arm until it firmly snaps into place. You should feel or hear a definite click.
* Repeat for the Other Side: Follow the same steps to replace the passenger-side wiper blade.
4. Testing:
* Turn on the Wipers: Turn on your wipers to ensure they operate correctly and don't scrape or skip. If they do, double-check that the blades are securely attached.
Important Notes:
* Consult Your Owner's Manual: The best source of information is your owner's manual. It will contain specific instructions for your vehicle.
* Blade Types: There are different types of wiper blade attachments. Knowing the type you have will make the process much smoother. If you're unsure, take a picture of the old blade connector and show it to a parts store employee. They can help you identify the correct replacement.
* Size Matters: Get the correct size blades. Incorrect size can lead to poor performance or damage to your windshield.
* Be Gentle: Avoid applying excessive force when removing or installing the blades.
If you're still having trouble, you might want to consult a professional mechanic or auto parts store for assistance. They can help identify your wiper blade type and guide you through the replacement process.
