Here's a general outline of the process:
1. Preparation:
* Gather tools: You'll need sockets (likely 10mm and possibly others), a ratchet, extensions, possibly a wrench, and possibly a trim panel removal tool to avoid scratching the plastic.
* Consult a repair manual: A Chilton's or Haynes manual for your specific year and model Jeep Wrangler YJ will be invaluable. Diagrams and specific torque specifications are crucial.
2. Accessing the Wiper Motor:
* Remove the wiper arms: This usually involves using a wiper arm puller tool to safely remove the arms. If you don't have one, you might be able to carefully pry them off, but this is riskier and can damage the arms or windshield. Note their position before removing them so you can reinstall correctly.
* Remove the wiper cowl: This is the plastic cover over the wiper mechanism. This usually involves removing a few screws or clips securing it to the body. Carefully pry it off to avoid breakage.
3. Removing the Wiper Motor:
* Disconnect electrical connectors: There will be at least one electrical connector plugged into the wiper motor. Carefully disconnect it.
* Disconnect linkage: The wiper motor is connected to the wiper arms via a linkage. Disconnect this linkage. This may involve removing a nut or bolt.
* Remove mounting bolts: The wiper motor is usually attached to the firewall or body with several bolts. Locate and remove these bolts.
* Remove the motor: Once the bolts and linkage are disconnected, carefully remove the wiper motor from its mounting location.
4. Installation (in reverse order):
* Install the new motor following the steps above in reverse order.
* Ensure all connections are secure.
* Test the wipers before reinstalling the cowl and wiper arms.
Important Considerations:
* Rust: On a 1992 vehicle, rust could make removing bolts difficult. Penetrating oil (like PB Blaster) applied several hours beforehand will help loosen things up.
* Bolts: Some bolts may be difficult to access. Use extensions and swivel sockets as needed.
* Fragile parts: The plastic cowl and linkage are relatively fragile. Take your time and avoid excessive force.
* Torque specs: Use the correct torque specifications from your repair manual to prevent damage.
This is a general guide. Always refer to a repair manual specific to your 1992 Jeep Wrangler YJ. The actual procedure may vary slightly, and having detailed instructions and diagrams is crucial for successful completion. If you are uncomfortable performing this repair yourself, taking it to a qualified mechanic is recommended.
