Here's a general outline; however, you should consult a repair manual specific to your 1995 Mercury Villager. A Haynes or Chilton manual will provide detailed instructions, diagrams, and torque specifications crucial for successful completion. Improper repair could lead to damage or injury.
General Steps (Consult your repair manual for precise details):
1. Preparation:
* Disconnect the negative battery terminal.
* Gather necessary tools: sockets, wrenches (likely metric), screwdrivers (Phillips and possibly flathead), possibly a ratchet and extensions, pliers. You might need a trim removal tool to avoid scratching plastic panels.
* Protect your work area with old towels or cardboard.
2. Access the Wiper Motor:
* This is typically done from under the dashboard. You'll likely need to remove or at least partially remove the lower dashboard panel or parts of it to gain access. Your repair manual will show you precisely which panels to remove and how. Be gentle to avoid breaking clips. Take pictures as you go to help with reassembly.
* You might also need to remove the steering column shroud (partially or completely, depending on access) for better visibility and maneuverability.
3. Disconnect Electrical Connections:
* Carefully disconnect the electrical connectors from the wiper motor. Take pictures or note the location of each connector to ensure correct reconnection. Some connectors may have locking tabs; use a small flathead screwdriver to release them gently.
4. Disconnect Linkage:
* Disconnect the wiper arm linkage from the wiper motor. This usually involves removing a nut or bolt, and perhaps a connecting rod or other linkage components.
5. Remove the Wiper Motor:
* Once the electrical connections and linkage are disconnected, the wiper motor itself may be secured with several bolts. Remove these bolts and carefully lower or pull out the wiper motor. This step often involves maneuvering the motor through tight spaces.
6. Install the New Wiper Motor:
* Carefully install the new wiper motor, reversing the removal steps. Ensure the linkage is correctly connected and the motor is securely bolted in place.
7. Reconnect Electrical Connections:
* Reconnect all electrical connectors, making sure they are securely seated.
8. Reconnect Linkage:
* Reconnect the wiper arm linkage.
9. Reassemble:
* Reinstall the dashboard panels and other components removed during the process.
10. Test:
* Reconnect the negative battery terminal. Test the wipers to ensure they are functioning correctly. Check for proper speed and wiping patterns.
Important Considerations:
* Repair Manual: A repair manual is absolutely essential. Generic instructions cannot account for variations between vehicles.
* Patience: This is not a quick job and requires patience and careful attention to detail.
* Safety: Always disconnect the negative battery terminal before starting.
* Torque Specifications: Use a torque wrench to tighten bolts to the manufacturer's specified torque values to prevent damage.
If you're not comfortable performing this repair yourself, it's best to take your vehicle to a qualified mechanic. The cost of a professional repair may be less than the cost of damaging parts during a DIY attempt.