Aagarrison

So my air turns on but nothing adjusts or does anything for that matter. My backseat vent blows cold air from the ac but thats it when i put my hand agenst the front vents it almost feels like there sucking some have told me blend door actuator and some have said controle module.. bottom line is if i cant fix it now is there a easy way to adjust my vents manually so i can atleast defog my windows any help with this would be much appreciated