Tools You'll Likely Need:
* Socket set (metric)
* Ratchet and extensions
* Screwdrivers (Phillips and flathead)
* Pliers
* Wire cutters/strippers (possibly)
* Electrical tape
* New windshield wiper motor
* Shop rags or paper towels
* Possibly a torque wrench
Steps (General Outline – Consult your repair manual for specifics):
1. Disconnect the Battery: This is crucial to prevent electrical shorts and injury. Disconnect the negative (-) terminal first.
2. Access the Wiper Motor: This usually involves removing the cowl (the plastic cover under the windshield wipers). This often requires removing the wipers themselves (lift the arms to their highest position and there will be a nut to remove, allowing the arm to detach). You might need to remove some screws and clips holding the cowl in place. Your repair manual will show you exactly which fasteners to remove and how to access the motor.
3. Disconnect the Electrical Connectors: Carefully disconnect the electrical connectors from the wiper motor. Take pictures or make notes to ensure you reconnect them correctly. Labeling wires is helpful.
4. Disconnect the Linkage: The wiper motor is connected to the wiper arms via a linkage system. Carefully disconnect this linkage. You might need to loosen some bolts or nuts.
5. Remove the Wiper Motor: Once the electrical connectors and linkage are disconnected, the motor itself can be removed. There are usually bolts securing it to the firewall or body. Again, your repair manual will guide you on the specific location and type of fasteners.
6. Install the New Wiper Motor: Follow the steps in reverse order to install the new motor. Make sure the linkage is properly connected and that the motor is securely fastened.
7. Reconnect the Electrical Connectors: Reconnect the electrical connectors, making sure they are properly seated.
8. Reconnect the Cowl and Wipers: Reinstall the cowl and the wipers, ensuring everything is correctly attached.
9. Reconnect the Battery: Reconnect the battery's positive (+) terminal.
10. Test the Wipers: Turn on your wipers to test their operation.
Important Considerations:
* Repair Manual: A repair manual specific to your 1999 Jeep Wrangler TJ is essential. It will provide detailed instructions, diagrams, and torque specifications.
* Photographs: Take plenty of photographs as you disassemble the system. This will be invaluable when reassembling.
* Parts: Make sure you purchase the correct wiper motor for your specific Jeep Wrangler model.
* Safety: Always disconnect the battery before working on any electrical components. Be careful when working with sharp or potentially dangerous tools.
This is a general guide. Do not attempt this repair without consulting a repair manual specific to your vehicle. If you are uncomfortable performing this repair yourself, take your Jeep to a qualified mechanic. Improper installation could lead to further damage or injury.
