1. Door Panel Removal:
* Disconnect the Battery: This is crucial to prevent short circuits.
* Remove Interior Door Handle: This usually involves unscrewing a screw or two (check for a small access panel, often hidden by the armrest). Once the screw(s) are out, the handle assembly may need to be carefully pried loose.
* Remove Window Crank Handle (if applicable): Similar to the door handle, usually involves removing one or two screws.
* Remove Door Panel Screws: Locate all the screws securing the door panel. These are typically along the edges and sometimes hidden under small covers.
* Disconnect Electrical Connectors: Once the screws are out, carefully pry the door panel away from the door. There are several electrical connectors behind the panel for the power window, power lock, and courtesy light. Gently disconnect these. Be mindful of where the connectors go for reassembly. Sometimes it helps to take pictures.
* Remove Door Panel: Carefully pull the door panel away from the door, keeping track of any clips or fasteners that may break.
2. Door Removal:
* Disconnect the Door Cables: There are several cables connected to the door: power window regulator cable(s), power lock cable(s), and possibly others depending on your options (e.g., heated mirrors). Disconnect these carefully.
* Remove the Door Striker Bolt: Locate the bolt that holds the door latch to the door jamb. You'll likely need a wrench to remove it.
* Remove the Door Hinge Pins: Each hinge has a pin that holds the door to the body. These pins are usually held in by a clip on one side and a bolt or nut on the other side. You may need a hammer and punch or a suitable tool to drive the pin out of the hinge. Work on this carefully. Sometimes the pin needs to be tapped from the bottom to remove. Support the door's weight as you remove the pins. Having a helper is recommended.
* Lift off the Door: Once all the pins are removed, carefully lift the door off the hinges. The door is heavy, so be prepared.
3. Electrical Component Removal (from the door):
Once the door is removed, you can now access and remove the specific electrical components you need, such as the:
* Power Window Regulator Motor and Mechanism: Usually attached with several screws or bolts.
* Power Lock Actuator: Connected via electrical connector and possibly a linkage rod.
* Door Speaker: Connected by wires.
Important Notes:
* Refer to a Repair Manual: A Haynes or Chilton repair manual specific to your 1990 Ford Bronco is invaluable. It will provide detailed diagrams and instructions.
* Take Pictures: Before disconnecting anything, take pictures so you can easily remember how everything goes back together.
* Label Wires: If you disconnect any wires, label them clearly to avoid confusion during reassembly.
* Safety First: Wear safety glasses to protect your eyes from flying debris. Have a helper to assist with lifting the heavy door.
This is a general outline. The exact procedure may vary slightly depending on your specific Bronco's options and condition. Always consult a repair manual for detailed and accurate instructions. Remember, if you are not comfortable performing this task, it is best to seek the help of a qualified mechanic.
