However, there's no single definitive location that applies to all 1999 Windstars. The exact placement can vary slightly depending on the transmission type (automatic or manual - almost certainly automatic in a Windstar) and even minor model variations.
To find it, I recommend:
1. Consult a repair manual: A Chilton's or Haynes repair manual specific to your 1999 Ford Windstar will have diagrams and instructions showing the exact location of the vehicle speed sensor. This is the most reliable method.
2. Use an online parts diagram: Many auto parts websites (like AutoZone, Advance Auto Parts, etc.) allow you to look up parts diagrams for your specific vehicle's year, make, and model. Search for "1999 Ford Windstar speed sensor" on their websites and select your specific options. The diagrams should show its location.
3. Visually inspect the transmission: Once you're under the vehicle (using jack stands for safety!), look closely at the transmission. The speed sensor is usually a small, cylindrical sensor with a wire harness connected to it. It will be bolted or clipped onto the transmission casing near the output shaft. Be cautious around moving parts.
Remember to disconnect the negative battery terminal before working on any electrical components, including the speed sensor.
If you are unsure about doing this yourself, it's always best to take your vehicle to a qualified mechanic. Incorrect installation could damage the sensor or transmission.
