In addition to the front core in the dash, if the van has the optional rear climate controls there will be a second one back there.
See "Related Questions" below for lots more about Windstar heater cores and climate controls
The most common reason the heater is blows cold air on a 1999 Ford Winstar is a bad thermostat or blocked heater core.
The CD changer is in the center console of a 1999 Ford Windstar
There is no MAP sensor on a 1999 Windstar.
how to drain 1999 windstar
how do you reset the anti-theft system on a 1999 Ford windstar
heater windstar ford
The "Related Question" below is an extensive discussion on the 1999-2003 temperature control valve / heater control valve. It is likely the information will be similar to the 1997 / 1998 Windstar
how do you reset the anti-theft system on a 1999 ford windstar
how do you reset the anti-theft system on a 1999 Ford windstar
On a 1999 Ford Windstar : What Ford refers to as the " service panel " is located in the cargo area on the passenger side of the vehicle
Yes. The mirror on the 2001 Ford Windstar is the same mirror found on the 1999 Ford Windstar. They are interchangeable.
Heater circuit fault