Temperature control in most Ford vehicles these days is through the use of a "temperature blend door" mechanism. This door/flapper adjusts the amount of air that passes through the heater core that is then mixed into the air blown into the cabin.
This door is moved by a small actuator motor - which in the case of Windstars, is a very common failure point.
See "Related Questions" below for much much more...
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
It does not have a heater control valve.It does not have a heater control valve.
where is the heater control valve for a 1997 ford expedition
Could you please tell me if a 1997 Chevy Venture has a heater control valve and if possible the location of the valve.
There is no control valve temp is set by a blend door.
97 cadillac deville heater controll
The heater control valve is on the left hand side of the engine bay, under the air intake duct. it has two heater hoses running to it and one vacuum line running to it.
yes
It does not have a water flow valve in the heater plumbing.It does not have a water flow valve in the heater plumbing.
No such part on a Town and Country. There is a blend air motor under the dash that controls the heater output.
Probably in the 1997 Pontiac trans-am heater core valve holder. If not, you probably lost it. Both the valve, and your mind.
the heater core could be pluged or the heater control valve is stuck closed