This happened to my 95 Windstar-I just replaces the fuse for the air mixture door.
On my 1999 Ford Windstar, the blend door itself broke. This repair is more costly and more difficult, perhaps $700 to $1000 to replace. I just tied a shoestring to my blend door.
When you insert the blend door actuator if there is no slot for it the door is broken and you are up sh... creak. Hope it is the former.
Another option is from a company called HeaterTreater - a method to repair a broken blend door without removing the dash. I haven't tried it, but the ideas behind it seem to make sense - and they have lots of videos showing the processes.
http://www.heatertreater.net/Windstar%20Listing.html
Windstar mini-vans are front wheel drive.
YES , the Ford Windstar is a front wheel drive vehicle
If you have no heat in either the front or rear, first suspect is the thermostat. That can affect both systems.If you have heat in one, but NOT the other, then I would first suspect a failed temperature blend door actuator motor.The "Related Questions" below provide a comprehensive diagnostics/trouble-shooting guide to figuring out Windstar heating problems.
front wheel drive
You can purchase a front end diagram for the Windstar vehicle at most auto parts stores. The diagram is most often found in do-it-yourself repair manual like Haynes.
According to the 2000 Ford Windstar Owner Guide : The front park / turn lamps take the ( 3157 NAK , amber bulb )
There are 2 wiper motors on a Windstar: 1 for the front wipers and 1 for the rear.
I did not think the Windstar came with *front* drum brakes (assuming the question is referring to brakes)...There are instructions for changing front disc brakes and rear drum brakes in the "Related Questions" below
If you are under the front of vehicle,its on the bottom front of engine facing the radiator.
On a Ford Windstar : firewall 1----2----3 4----5----6 front of vehicle > driver
firewall 1-----2-----3 4-----5-----6 front of Ford Windstar
See "Related Questions" below for a listing of trouble-shooting / diagnostics for Windstar overheating problems