See "Related Questions" below for a complete discussion on possible causes and more importantly: fixes
You are likely in an antarctic region.
15.0 liters ( 15.9 quarts ) according to the 2001 Ford Windstar Owner Guide - cooling system capacity with rear heater
you must have low coolant or a bad heater core
Feel the heater hoses in engine compartment if one is hot and other cool try flushing heater core.
did you check the heater core because my truck did that and that was what was wrong
The 2001 Windstar is rated at 200hp
It has a bad "Blower Motor Resistor" The fan switch itself is fine.
Once a heater core starts to leak, the only remedy is to replace it.Luckily it appears to be a pretty straight-forward job on the Windstar - the heater core is at the bottom of the center of the dashboard - remove the ductwork and some of the trim pieces to expose the heater core compartment.Of course, this is after draining the engine coolant and disconnecting the heater hoses in the engine compartment.See "Related Questions" below for more...
The 2001 Windstar has no radiator cap. It has an antifreeze bottle.
Yes. The mirror on the 2001 Ford Windstar is the same mirror found on the 1999 Ford Windstar. They are interchangeable.
If you mean the fan blows but sometimes the air is cold, it probably is low coolant (antifreeze) level in the radiator. Check the level AT THE RADIATOR, not the overflow tank, while the truck is cold.
The fuel tank holds ( 26 gallons ) on a 2001 Ford Windstar