How to Disassemble and Reassemble a Car Wiper Motor

Car wiper motors are responsible for moving the wiper blades back and forth across the windshield. Over time, these motors can wear out or become damaged, requiring replacement. If you're comfortable working on your own car, you can save money by replacing the wiper motor yourself.

Tools and Materials You'll Need

New wiper motor

Socket wrench

Screwdriver

Pliers

Wire cutters

Electrical tape

Safety First

Before you begin, disconnect the negative terminal of the battery. This will prevent any electrical shocks.

Step-by-Step Instructions

Disassembly

1. Locate the wiper motor. The wiper motor is usually located under the hood, near the base of the windshield.

2. Disconnect the electrical connector. There will be a single electrical connector plugged into the wiper motor. Use a screwdriver or pliers to disconnect the connector.

3. Remove the bolts holding the wiper motor in place. There will be two or three bolts holding the wiper motor in place. Use a socket wrench to remove the bolts.

4. Pull the wiper motor out of the vehicle. Once the bolts are removed, you should be able to pull the wiper motor out of the vehicle.

Reassembly

1. Position the new wiper motor in the vehicle. Align the new wiper motor with the mounting holes in the vehicle.

2. Insert the bolts and tighten them. Use a socket wrench to tighten the bolts until they are snug.

3. Connect the electrical connector. Plug the electrical connector into the wiper motor.

4. Reconnect the battery. Reconnect the negative terminal of the battery.

Testing the Wiper Motor

Once you have reassembled the wiper motor, you can test it by turning on the wipers. The wipers should move back and forth across the windshield smoothly and evenly.

Troubleshooting

If the wipers do not move when you turn them on, there may be a problem with the electrical connection. Check the electrical connector to make sure that it is properly connected. If the connector is loose, tighten it. You can also try replacing the fuse for the wiper motor.

If the wipers move slowly or unevenly, there may be a problem with the wiper motor itself. Replace the wiper motor with a new one.

Tips

If you are not comfortable working on your own car, it is best to have a mechanic replace the wiper motor for you.

Be careful not to overtighten the bolts when you are reassembling the wiper motor.

If you have any questions, consult your vehicle's repair manual or a qualified mechanic.

Complete Video of Car Wiper Disassembly and Assembly

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Introduction

Windshield wipers are an essential component of any car, ensuring clear visibility during inclement weather. However, like any other part, they can wear out over time, requiring repair or replacement. Disassembling and assembling car wipers is a straightforward task that can be performed at home with the right tools and knowledge.

Tools and Materials

Phillips head screwdriver

Flat head screwdriver

Pliers

Wiper blade refills (if replacing blades)

Disassembly

Step 1: Remove the Wiper Arms

Lift the wiper arms away from the windshield.

Locate the pivot point where the arm attaches to the wiper motor transmission link.

Using a Phillips head screwdriver, loosen the nut securing the arm to the transmission link.

Gently pull the wiper arm straight up to detach it.

Step 2: Remove the Wiper Blade

Hold the wiper blade at the midpoint and push the release button on the top or bottom.

Gently slide the blade out of the wiper arm.

Assembly

Step 1: Insert the Wiper Blade

Align the new wiper blade with the arm and insert it into the slot.

Ensure the blade is facing the correct direction (towards the windshield).

Push the release button to lock the blade in place.

Step 2: Reattach the Wiper Arms

Insert the wiper arm back onto the transmission link and align it with the bolt hole.

Tighten the nut using a Phillips head screwdriver, but do not overtighten.

Lower the wiper arms back onto the windshield and ensure they are operating smoothly.

Troubleshooting

Wiper arms not moving: Check if the transmission link is properly connected to the wiper motor.

Wiper blades not wiping effectively: Replace the wiper blades or adjust the arm tension.

Wiper arms chattering: Check if the blades are properly aligned or if there is debris on the windshield.

Additional Tips

Replace wiper blades every 6-12 months for optimal performance.

Regularly clean the wiper blades and windshield with a glass cleaner.

Check the wiper transmission link for any rust or damage.

If you experience any difficulties, consult a professional mechanic.

Conclusion

Disassembling and assembling car wipers is a simple task that can be completed by most do-it-yourselfers. By following these instructions and utilizing the provided tools and materials, you can ensure that your windshield wipers are functioning properly, providing you with clear visibility in all weather conditions.