2003 Ford Explorer A/C won't blow

Sounds llike vaccum problem with the heater 'doors' which switch directon of air flow.

On the motorcraft parts web site, you can blow up
a picture of the HVAC Blend Door Motors & locations,
as well as part numbers

You can get failed motor from Amazon

With knowing where the motors are located, try switching
the air flow modes manually, to see what positions do not work

Then you know what motors to replace

I also have professional scan tool software & can see the codes
for the motors in enhanced data.

The-- Vent Blend Doors-by name

Defrost-up top
Cabin -the vents as you say in the middle & on the sides
Floor
Recirculate-under the glove box
Blend Door -under the dash on your print

With the car parked and engine idling, turn the ventilation control between windshield defroster and "open air ducts" to front and rear vents. Listen to pinpoint where the valves are that open and closes the air ducts. It sounds like the air duct to rear vents are blocked, and the cold air in rear air duct is coming from "outside ventilation." The air vent to allow hot air to the rear vent is stuck in "open ventilation" mode, like when you're driving in spring or summer months.

There is a blend door acuator which moves when u change your settings. Its a electric motor. Down under dash, Will need a mech and a heating and cooling diagram to find where the motor is,

Check the duct work under dash might be unhooked

the motor that select the air to blow is the mode door actuator, some models are supply by air solenoid valve, if you want to see the location of mtor actuator, this is on the left side of evaporator case, a little bit upper of accelerator pedal

Either the door that controls the flap that either sends the air through the defrost or the regular outlet is stuck or not working. Some of them work off of a cable and others work from vacuum. Not sure which the ford escort uses but usually you are able to hear the flap move when you go from defrost to regular cabin vent. Or possibly the air duct hose has come off that sends the air through the cabin. Good Luck and hope this helped a little.

Hope I was avle to help, glad you up and going.

Freon is low, go to walmart and buy a R134 kit with guage attached (not very expensive. Connect it to the low pressure side of the A/c system (don't worry the connection won't fit on the high pressure side) Read the guage on the kit and add as neccessary. It truly is that simple.

the resister block needs changing... oddly enough i'm unsure of what fan you are saying is not working.... if it's the front.. the resister block is located on the duct work under the dash for the air... near the fan... you will see a connector going into the side of the duct work. two screws and the block comes out... should be fairly obvious for the rear one but it will be near the fan.