If you need to add refrigerant, your system has a leak. Could be a small leak, could be a large leak. Best bet would be to purchase some R134a with leak seal/o-ring reconditioner. You can get a kit with a recharging hose.
Make sure your car is running with the air conditioner on full blast. Connect the hose for the kit to the suction line (NOT the high pressure side) located on the passenger side of the vehicle.
Basically follow the instructions on the can. You may need more than one can of R134a to notice a difference.
If the compressor is not taking refrigerant...the pressure may have gotten so low that it's off on a low pressure switch. In this case, I'd suggest finding someone that knows more than you and ask for their help.
Another thing to check is the temperature blend door actuator motor.
See "Related Questions" below for more
Buy a kit at Wal-Mart or auto parts comes with instructions
Buy a kit at Wal-Mart or auto parts comes with instructions
Buy a kit at Wal-Mart or auto parts comes with instructions
Buy a kit at Wal-Mart or auto parts comes with instructions
Buy a kit at Wal-Mart or auto parts store - comes with instructions
Buy a kit at Wal-Mart or auto parts comes with instructions
Buy a kit at Wal-Mart or auto parts comes with instructions
Sounds like you've verified the AC functions - so it's a matter of the temperature controls.On a Windstar, this is controlled by a small motor that moves the temperature blend door. This motor is virtually guaranteed to fail. That's the bad news, the good news is that it's an easy and not expensive fix!See "Related Questions" below for more about doing the job yourself.
It's the blend door on the HVAC box. It's what controls what temp air comes through the vents.
sounds like your thermostat wires are touching somewhere.. maybe a nail was hammered into it or possibly something chewed on it..
as in rains when summer comes they heat up which makes them useless.So try to recharge them.
Visit Auto Zone or Advance Auto Parts and tell them that you need a thing to recharge your air conditioner, they will understand what you need and show where to find what you are looking for. wherever you buy refrigerant you should be able to buy a can of refrigerant that comes with the charging hose included. most are reusable, just unscrew it from one can and screw it on the new one.