Tools You'll Need:
* Flathead screwdriver or wiper arm puller: A wiper arm puller is recommended, as it makes the job much easier and safer, minimizing the risk of scratching the windshield. If using a flathead screwdriver, choose one that's appropriately sized and not too thin to avoid bending or breaking.
* New wiper arm(s): Ensure you purchase the correct replacement wiper arms for your 2003 Ford Expedition.
* Shop rags or paper towels: To clean up any debris or protect the windshield.
* Penetrating oil (optional): If the wiper arm is particularly stubborn.
Steps:
1. Park and Prepare: Park your Expedition on a level surface, engage the parking brake, and turn off the ignition.
2. Lift the Wiper Arm: Lift the wiper arm away from the windshield. It helps to do this when the wiper is in the "rest" position.
3. Locate the Wiper Arm Nut: Look closely at the base of the wiper arm where it connects to the wiper transmission. You should see a nut or a small fitting that secures the arm.
4. Apply Penetrating Oil (Optional): If the nut is stuck or seems difficult to remove, spray some penetrating oil onto the connection. Let it sit for a few minutes to help loosen things up.
5. Remove the Wiper Arm: Using the wiper arm puller, firmly position it over the wiper arm nut. Gently squeeze the handles of the puller and pull the arm away from the windshield. If you're using a flathead screwdriver, carefully insert it under the wiper arm nut, ensuring not to damage the wiper transmission. Gently pry and rotate the wiper arm counterclockwise to release it. Be careful not to apply too much force as you risk damaging the wiper arm or the transmission.
6. Install the New Wiper Arm: Once the old wiper arm is removed, align the new wiper arm with the wiper transmission. Push it firmly onto the shaft until it clicks into place. You should feel a secure connection. If it doesn't snap securely, double-check the alignment.
7. Repeat for the Other Arm: Repeat steps 3-6 for the other wiper arm.
8. Test the Wipers: Turn on your ignition and test the wipers to ensure they operate correctly.
Important Considerations:
* Force: Avoid using excessive force at any point during this process. If you're encountering significant resistance, stop and reassess your technique. You might need to apply more penetrating oil or use a better-suited tool.
* Windshield Damage: Be extremely careful not to scratch your windshield. Use soft cloths and be gentle when working near the glass.
* Wiper Arm Type: Ensure you're replacing with a compatible wiper arm designed for your vehicle's model and year.
If you're uncomfortable performing this repair yourself, it's always best to take your vehicle to a qualified mechanic. They have the right tools and expertise to handle the job safely and efficiently.
