Why does the cruise control not work on my 1999 Windstar?

The cruise control on your 1999 Windstar may not work due to several common issues, such as a blown fuse, a malfunctioning cruise control switch, or a faulty speed sensor. Additionally, problems with the brake pedal switch can prevent the system from engaging. It's also possible that the throttle actuator or wiring harness has issues. A diagnostic check can help pinpoint the exact cause.