Here's a general guide. This is not a substitute for a repair manual specific to your van. Consult a repair manual for detailed diagrams, torque specifications, and specific instructions relevant to your exact model and year. Variations exist between conversion van manufacturers and even within the same year model.
1. Preparation:
* Gather tools: You'll need screwdrivers (Phillips and possibly flathead), possibly sockets and wrenches, possibly a panel removal tool, possibly a window regulator removal tool, and a wiring diagram.
* Obtain the correct motor: Ensure you have the correct replacement motor for your van's year and model. Incorrect parts will lead to further problems.
* Disconnect the battery: This is crucial to prevent electrical shocks and short circuits.
2. Accessing the Window Motor:
* Remove the interior door panel: This usually involves removing screws around the armrest, door handle, and possibly around the speaker grille. Carefully pry the panel away from the door using panel removal tools to avoid damage.
* Remove the window regulator: This is often attached to the motor. The regulator may need to be detached from the window glass to gain access to the motor. A regulator removal tool can be very helpful here. Take pictures or make notes during disassembly as reassembly will require the reverse process. Pay close attention to how the regulator is connected to the window.
* Locate the window motor: Once the regulator is out of the way (partially or fully depending on your van's design), the motor will be visible. It's usually attached with bolts or screws.
3. Replacing the Motor:
* Disconnect the electrical connector: Carefully unplug the electrical connector from the old motor.
* Remove the old motor: Unscrew or unbolt the old motor from its mounting location.
* Install the new motor: Carefully align the new motor and secure it using the appropriate fasteners. Ensure it's firmly in place.
* Reconnect the electrical connector: Plug the electrical connector back into the new motor.
4. Reassembly:
* Reinstall the window regulator: Carefully reattach the regulator to the window and to its mounting points on the door.
* Reinstall the interior door panel: Carefully attach the door panel back in place, ensuring all the screws are properly tightened.
* Reconnect the battery: Reconnect the negative battery terminal.
5. Testing:
* Test the window: Operate the power window switch to verify the new motor is functioning correctly. Ensure the window goes up and down smoothly without any binding or unusual noises.
Important Considerations:
* Window glass removal: Some models may require removing the window glass completely to access the motor. This is more complex and requires careful handling to prevent damage to the glass.
* Wiring: If the wiring harness is damaged, you'll need to repair or replace it. A wiring diagram is crucial for this.
* Door-specific variations: Conversion vans, especially from 1994, can have significant variations in their door construction and window mechanisms. Your specific model might have unique steps. Refer to a repair manual tailored to your vehicle.
Remember, if you're not comfortable with these steps, it's best to consult a qualified mechanic. Improper installation can lead to further damage or even injury. Always prioritize safety.
