Air blowing through vents

I thought that too. Tested all the lines and they work perfectly. And to go the extra step I can physically see all the flaps open and close as they suppose to, I can see it go from window defrost to vents to floor, they all open and close when I turn the knob to its destination. Tested all the air actuators that controls the flaps and they all function. Blower motor works just fine. Even for giggles I did a radiator flush. Problem still exists, I get only a breeze coming from any vents I choose. I did find it strange that when I took the blower motor out that the flap to the outside air (leading to the firewall motor compartment) is open when I have the directional knob placed in the "off" position and that actuator that is controlling that flap is getting air to it to push it open. But as soon as I turn the knob to anything else such as "vent" or "defrost" that flap closes and that when that runs the actuator motor thingy stops pushing air. There is no cabin air filter and no signs of any air blockage except for that door next to the blower motor closing when the fan turns on. Maybe why I am only getting a breeze through any vent is it cannot push air because it cannot pull in air? So if it cant draw in any air it cannot push the air through. Kind of like if you put a fan inside a tube it would work. But as soon as you block off the side that it needs to suck air in to circulate properly it will not be able to push air out the tube properly until you open that side of the tube back up that you previously closed. Then it works again. Just using an example on my train of thought.

I have not changed the blower motor yet. The wires clip in only one way. I can try to see if I can reverse those wires somehow.

I will take a look, thank you for your help getting me this far.

Thank you. Took a look at it. It appears that everything is functioning normally. I even with the extra mile and take a look at the intake lines see if it was clogged and from the fan to all the vents. No clogs. That really leaves me with two options that I can think of now. A resistor is bad or the blower motor is bad. I took the motor out and tested it and I immediately regret that cuz I kicked up all the dirt from a passenger floorboard. Still a puzzle to me.