1. Preparation:
* Safety First: Disconnect the negative battery terminal to prevent accidental electrical shorts.
* Gather Tools: You'll likely need a variety of tools, including:
* Screwdrivers (Phillips and possibly flathead)
* Panel removal tools (plastic pry tools to avoid scratching)
* Possibly a socket set (depending on how the motor is secured)
* Pliers
* A flashlight
* New vent window motor (ensure you get the correct part number for your vehicle)
* Consult a Repair Manual: A Chilton's or Haynes repair manual for your specific year and model will be invaluable. It will provide detailed diagrams and instructions specific to your van. Online repair manuals are also an option.
* Photography: Before removing anything, take lots of pictures. This will help you remember how everything goes back together.
2. Accessing the Motor:
This is the trickiest part. Access usually involves removing interior trim pieces. The general approach is as follows:
* Rear Passenger Door Panel Removal: Start by removing the rear passenger door panel. This typically involves removing screws around the armrest, door handle, and possibly under the door pull. Use plastic pry tools carefully to avoid breaking clips.
* Quarter Panel Trim Removal: Once the door panel is off, you might need to remove some of the interior quarter panel trim. This is often held on by more screws and clips. Again, be gentle to avoid breakage.
* Accessing the Motor (The Variable Part): This is where the manual will be most helpful. The motor's location varies, but it's generally somewhere within the space between the door and the quarter panel. It may be behind the door trim, possibly requiring further disassembly. It's frequently accessed through an opening revealed after removing a portion of the inner panel. You may need to remove the window regulator or other components to get to the motor.
3. Motor Replacement:
* Disconnect the Electrical Connector: Carefully disconnect the electrical connector from the old motor.
* Remove the Old Motor: This usually involves removing screws or bolts holding the motor in place.
* Install the New Motor: Install the new motor, ensuring it's securely fastened in the same position as the old one.
* Reconnect the Electrical Connector: Reconnect the electrical connector.
4. Reassembly:
* Reassemble everything in reverse order: Refer to your photos and/or repair manual to put everything back together correctly.
* Test the Window: Once everything is reassembled, reconnect the battery and test the rear vent window to ensure the new motor is working.
Important Notes:
* Clips and Fasteners: Be extremely careful when removing interior trim. Many of the clips are fragile and can easily break. It's best to use plastic pry tools to minimize damage.
* Wiring: Take care not to damage any wires during the process.
* Window Regulator: Be aware that you may need to partially disassemble the window regulator to access the motor, so familiarize yourself with its operation before starting.
This is a general guide. Without specific diagrams and detailed instructions from a repair manual for your 1999 Chrysler Town & Country LXi, this information is insufficient to guarantee success. If you're not comfortable with automotive repairs, it's recommended you take your van to a qualified mechanic. Improper repair could lead to further damage.
