1. Preparation:
* Consult a repair manual: This is crucial. A manual specific to your car will show you exactly how the linkage is connected, what tools you'll need, and the correct procedure. This avoids damage and ensures you do the job correctly.
* Gather tools: You'll likely need various tools, including screwdrivers (Phillips and flathead), possibly sockets and wrenches, pliers, and maybe even a trim removal tool to access the linkage.
* Disconnect the battery: This is a safety precaution to prevent accidental shorts or damage to electrical components.
* Park the vehicle on a level surface and engage the parking brake.
2. Accessing the Linkage:
* Locate the wiper linkage: This usually sits under the hood, near the wiper motor and windshield. Your repair manual will show you its exact location.
* Remove any obstructions: You may need to remove plastic covers, air intake components, or other parts to gain access. Be careful not to break anything.
3. Disconnecting the Linkage:
* Disconnect the wiper arms: This usually involves using a wiper arm puller tool to remove them from the wiper spindles. Trying to force them off can damage the spindles.
* Disconnect the linkage components: This is the most variable part. The linkage consists of various arms, joints, and connecting rods. You may need to disconnect nuts, bolts, clips, or other fasteners. Your repair manual will specify the order and method. Take pictures as you go to help with reassembly.
4. Installing the New Linkage:
* Install the new linkage: Carefully reverse the disassembly process. Make sure all parts are correctly aligned and securely fastened.
* Reconnect the wiper arms: Use the wiper arm puller to carefully attach the wiper arms to the spindles.
* Reconnect any removed parts: Reinstall any covers, air intake components, or other parts you removed earlier.
5. Testing:
* Reconnecting the battery: Reconnect the battery.
* Test the wipers: Turn on the wipers and check for proper operation. They should move smoothly and wipe the entire windshield.
Important Considerations:
* Rust and corrosion: In older vehicles, rust and corrosion can make removing the linkage very difficult. Penetrating oil can help loosen things up.
* Damaged parts: If other parts of the wiper mechanism are damaged (motor, spindles, etc.), you might need to replace them as well.
* Professional help: If you're not comfortable working on your car, or if you're unsure about any step, it's best to take it to a qualified mechanic. This avoids potentially causing more damage.
Remember, this is a general overview. Always consult a repair manual specific to your vehicle before attempting this repair. Improperly replacing the wiper linkage can lead to malfunctioning wipers or even damage to other components.
