1. Preparation:
* Safety First: Disconnect the negative battery terminal to prevent electrical shorts.
* Gather Tools: You'll need a trim panel removal tool (plastic pry tools are best to avoid scratching), screwdrivers (Phillips and possibly flathead), possibly a ratchet and sockets, and possibly a window regulator removal tool (depending on design). Have your new window regulator and motor assembly ready.
* Consult a Repair Manual: A Haynes or Chilton manual for your specific year and model will be invaluable. It will show you exactly where clips and screws are located, and provide diagrams of the door panel and window regulator.
2. Removing the Interior Door Panel:
* Locate and remove the door handle: This usually involves removing screws or releasing clips.
* Remove the armrest cover: Often held on by clips or screws.
* Remove screws and clips holding the door panel in place: These are usually located around the edges of the panel. Work carefully to avoid breaking clips. Use the trim panel removal tool to gently pry the panel away from the door. There are likely several clips securing the panel.
* Disconnect electrical connectors: These will include the power window switch and possibly other connectors for the door lock, courtesy light, etc. Be careful to note their location for reassembly.
3. Accessing and Removing the Window Regulator:
* Inspect the window regulator mechanism: Observe how it's attached to the door and the window. This is crucial for reassembly.
* Remove any remaining screws or bolts holding the regulator in place: These are often located behind the door panel.
* Detach the window glass from the regulator: This can be tricky; some regulators have clips while others use screws. Support the window glass carefully to prevent it from falling. It may be helpful to use tape to temporarily hold the glass in place.
* Remove the old window regulator assembly: This usually involves unbolting or unclipping the unit from the door.
4. Installing the New Window Regulator:
* Install the new window regulator assembly: Carefully reverse the removal steps, ensuring it's securely fastened.
* Reattach the window glass to the new regulator: Again, pay close attention to how it attaches.
* Test the new regulator: Before reassembling the door panel, carefully test the operation of the new regulator to ensure it functions correctly.
5. Reassembling the Door Panel:
* Reconnect the electrical connectors: Make sure everything is plugged in securely.
* Reinstall the door panel: Align the panel and carefully push it into place. Secure it with all screws and clips.
* Reattach the armrest and door handle: Make sure everything is properly secured.
* Reconnect the battery: Reconnect the negative battery terminal.
* Test the window: Test the window operation to ensure it works properly.
Important Considerations:
* Window Glass Removal: This step is critical, and damage to the glass is possible. Use caution and possibly consider professional help if you're uncomfortable.
* Clips and Fasteners: Door panel clips are often fragile. Try to reuse the existing ones, but be prepared to replace broken ones.
* Manual vs. Power: If your car has a manual crank window, the process is much simpler; however, the basic process of removing the door panel still applies.
This detailed description is a general guideline. Referencing a repair manual specific to your 1998 Ford Taurus is crucial for precise instructions. If you're not comfortable with this type of repair, it's best to take your vehicle to a qualified mechanic.
