1. Preparation:
* Safety First: Disconnect the negative battery terminal to prevent electrical shorts.
* Gather Tools: You'll need various tools, including screwdrivers (Phillips and flathead), possibly Torx bits, panel removal tools (to avoid scratching the interior), a window regulator removal tool (highly recommended), possibly a putty knife, and potentially a new window weatherstrip (depending on the condition of the old one). A shop manual will specify the exact tools.
* New Parts: Obtain a new window and potentially a new window regulator (if the old one is damaged). Ensure you get the correct part for your specific year and model.
* Workspace: Work in a well-lit area with adequate space.
2. Door Panel Removal:
* Interior Door Panel: This is usually held on by screws hidden under various trim pieces (armrest, door handle, etc.). Carefully pry off the trim pieces using panel removal tools to avoid breaking the plastic clips. Once the trim is off, you'll find the screws holding the door panel itself. Remove these screws and carefully remove the door panel, being mindful of the electrical connectors for the window switch, door lock, and speakers. Disconnect these connectors.
3. Window Regulator Removal:
* Access the Regulator: With the door panel removed, you'll see the window regulator mechanism. This is the part that moves the window up and down.
* Disconnect the Window Motor: Disconnect the window motor connector.
* Remove the Regulator: This is where the regulator removal tool comes in handy. It helps to compress the regulator and remove the window from its tracks. The process varies slightly depending on the regulator design. Your repair manual will detail this step. Be prepared for some frustration; it's often tricky.
4. Window Removal:
* Separate the Window from the Regulator: The window is likely held in place by clips or a channel on the regulator. Gently work it free. Be careful not to break the window.
5. Installation:
* Install the New Window: Carefully install the new window onto the new or refurbished regulator, ensuring it's properly seated in the tracks.
* Reinstall the Regulator: Reverse the regulator removal process to carefully reinstall the regulator into the door.
* Reconnect the Motor: Reconnect the window motor connector.
* Reinstall the Door Panel: Reinstall the door panel, making sure all the clips and screws are properly secured. Reconnect the door lock, window switch, and speaker connectors.
6. Testing:
* Test the Window: Reconnect the battery and test the window operation. Ensure it moves smoothly and without binding.
Important Considerations:
* Repair Manual: This is absolutely essential. Following generic instructions without a specific repair manual for your vehicle can lead to damage.
* Professional Help: If you're not comfortable with this type of repair, consider taking your Expedition to a professional mechanic. The cost of repair might be less than the cost of replacing damaged parts due to incorrect installation.
* Window Weatherstrip: Inspect the weatherstrip around the window. If it's damaged or worn, replace it to prevent leaks.
This process is a simplified overview. A detailed repair manual is absolutely crucial for successful completion. Don't attempt this repair without one. Remember to take pictures as you disassemble the components to help you during reassembly.
