Tools You'll Need:
* Jack and jack stands: Essential for safe working conditions. Never work under a vehicle supported only by a jack.
* Wheel chocks: To secure the other wheels.
* Lug wrench: To remove the wheel.
* Socket set and ratchet: You'll need sockets of various sizes, likely including one to match the sensor's retaining bolt.
* Penetrating oil (PB Blaster or similar): To help loosen any rusted or seized bolts.
* Wrench (possibly) Depending on the sensor design, you might need a wrench to help turn the sensor.
* New rear right wheel speed sensor: Make sure you get the correct part for your vehicle.
* Shop rags or paper towels: To clean up any spills or debris.
* Owner's Manual: Always a good idea to have for reference.
Procedure:
1. Safety First: Park your Windstar on a level surface, engage the parking brake firmly, and chock the front wheels. Raise the rear right side of the vehicle using the jack and securely support it with jack stands.
2. Remove the Wheel: Remove the lug nuts from the rear right wheel and carefully remove the wheel. Set it aside in a safe place.
3. Locate the Sensor: The speed sensor is usually located near the rear differential or axle housing. It's typically a small, cylindrical sensor with a wire harness connected to it. Refer to your repair manual for the precise location. It might be partially hidden behind the brake components.
4. Disconnect the Electrical Connector: Carefully disconnect the electrical connector from the speed sensor. Sometimes a small tab needs to be pressed to release the connector.
5. Remove the Sensor: The sensor is usually held in place by a bolt or clip. Apply penetrating oil if necessary and use the appropriate socket or wrench to remove the retaining bolt. The sensor might be slightly difficult to remove due to corrosion. Gently work it loose.
6. Install the New Sensor: Carefully install the new speed sensor, ensuring it seats properly. Tighten the retaining bolt to the manufacturer's specified torque (check your repair manual).
7. Reconnect the Electrical Connector: Carefully reconnect the electrical connector to the new sensor. Make sure it's securely seated.
8. Reinstall the Wheel: Carefully reinstall the wheel and tighten the lug nuts to the manufacturer's specified torque (check your repair manual).
9. Lower the Vehicle: Slowly lower the vehicle using the jack.
10. Test: Start the vehicle and test the speedometer to ensure the new sensor is functioning correctly. A scan tool can help verify the sensor's signal.
Important Considerations:
* Corrosion: The sensor might be corroded or seized in place. Use penetrating oil and patience to avoid damaging the sensor or its housing.
* Repair Manual: A repair manual specific to your 1996 Ford Windstar is highly recommended. It will provide detailed diagrams and instructions, ensuring you perform the repair correctly.
* Torque Specifications: Always tighten bolts and nuts to the manufacturer's specified torque. Over-tightening can damage threads or components. Under-tightening can lead to loosening and failure.
If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. This is a relatively simple job but incorrect installation could lead to further problems.
