Where is the solenoid - starter located on a Ford Windstar?

The starter solenoid on a Ford Windstar is integrated into the starter motor itself. It's not a separate component like in some older vehicles. The starter motor is located on the bottom of the engine, on the passenger side (right side when sitting in the driver's seat). You'll have to get underneath the vehicle to see it. It'll be a fairly substantial cylindrical unit with large cables connected to it.