Tools You'll Likely Need:
* A wiper arm puller: This is crucial. Trying to pry them off without one will likely damage the wiper arm or the wiper transmission. You can often find these at auto parts stores relatively inexpensively.
* Socket wrench or pliers (depending on the nut type): To remove the nut holding the wiper arm in place.
* New wiper arms: Ensure you buy the correct ones for your 1997 Eldorado.
* Rags or paper towels: To clean up any dirt or grime.
Steps:
1. Preparation: Park your vehicle on a level surface and turn off the ignition. It's a good idea to disconnect the negative battery terminal as an extra safety precaution.
2. Locate the Wiper Arm Nut: With the wipers in the "off" position, locate the nut securing the wiper arm to the wiper transmission. It's usually a fairly standard nut and might be hidden under a small cap or cover. Clean any dirt or debris around the nut to ensure a clean removal.
3. Use the Wiper Arm Puller: Carefully place the wiper arm puller over the wiper arm. Follow the instructions provided with your specific puller. This tool will help you pull the wiper arm away from the transmission shaft while protecting both parts from damage. The puller creates enough pressure to break the connection safely.
4. Remove the Nut: Once the wiper arm is loose, use your socket wrench or pliers to remove the nut completely.
5. Remove the Wiper Arm: Once the nut is off, carefully lift the wiper arm off the wiper transmission shaft.
6. Install the New Wiper Arm: Align the new wiper arm with the wiper transmission shaft. Push it onto the shaft firmly. Then, securely tighten the nut.
7. Repeat: Repeat steps 3-6 for the other wiper arm.
8. Test: Turn on your wipers to ensure they function correctly. Check for proper operation at all speeds.
9. Reconnect the Battery (if disconnected): If you disconnected the battery terminal, reconnect it now.
Important Considerations:
* Sprays: It's advisable to spray some penetrating oil (like WD-40) on the wiper arm nut to help loosen it before attempting to remove it. Let it sit for a few minutes.
* Stubborn Nuts: If the nut is extremely stubborn, you may need to use a breaker bar for extra leverage. Avoid using excessive force which could strip the threads.
* Wiper Blades: While you're at it, this is a good time to replace your wiper blades as well.
* Professional Help: If you're not comfortable with this process or encounter significant difficulties, take your vehicle to a qualified mechanic.
Remember safety first! If you're unsure about any step, consult a professional. Incorrect installation could lead to damage to your vehicle's wiper system.
