Tools you'll likely need:
* Flathead screwdriver (or a wiper arm puller): This is crucial for prying the arm off. A wiper arm puller is the safest option, but a flathead screwdriver can work if used carefully.
* Socket wrench and socket (usually 10mm or 11mm): You may need this to remove a nut securing the wiper arm to the shaft. This isn't always the case, though.
* Penetrating oil (like PB Blaster): This can help loosen any stubborn nuts or connections. Apply and let it sit for a few minutes before attempting to remove anything.
* Rag or shop towels: To protect the windshield.
Procedure:
1. Disconnect the Battery (Recommended): This is a safety precaution to prevent accidental short circuits while working near electrical components.
2. Raise the Wiper Arms: Raise the wiper arms to their highest position. This gives you better access to the connection point.
3. Locate the Wiper Arm Nut (If Present): Some models have a nut securing the wiper arm to the wiper motor shaft. If present, use the appropriate socket wrench to carefully loosen and remove this nut.
4. Prepare for Removal: Place a rag or towel over the windshield beneath where the wiper arm will be removed to prevent scratches.
5. Remove the Wiper Arm: This is where the flathead screwdriver (or wiper arm puller) comes in. This is the most delicate part.
* Using a Wiper Arm Puller: This is the safest method. Follow the manufacturer's instructions for its proper use.
* Using a Flathead Screwdriver: Carefully insert the flathead screwdriver between the wiper arm and the wiper motor shaft. Gently pry upward, applying even pressure. You may need to work it back and forth to break the connection. Do not use excessive force, as you can easily damage the wiper motor shaft or the windshield. The arm will likely pop off with a slight "pop" sound.
6. Repeat for the other arm.
Important Considerations:
* Rust and Corrosion: On older vehicles, rust and corrosion can make this process more difficult. Penetrating oil is your friend here. Let it soak in for a while before attempting removal.
* Sprays: Avoid using WD-40 or similar sprays as they can damage wiper arm components and leave residue.
* Force: Avoid excessive force at all times. If something is stuck, stop and reassess your approach.
If you're uncomfortable performing this yourself, it's best to take your vehicle to a qualified mechanic. Damaging the wiper motor or windshield can be costly to repair.
