why is does air only blow through floor vents or defrost vents?

why is does air only blow through floor vents or defrost vents? 1 Answer

Recently got a mustang and it only blew through the defroster vents then I replaced the A/C heater blend door actuator and it now blows through the floor vents and defrost vent with a little bit of ...

Blower fan works olny on Defrost? Air will not blow out to vents or floor 1 Answer

My Mustang Blower fan works only on Defrost? 3 Answers

My 1994 Ford Mustang Blower fan works only on Defrost? Air will not blow out to vents or floor

2002 Ford Taurus has no heat or air coming through vents, only through defrost 5 Answers

Turn dial manually to air or heat, I have nothing coming through the vents. Only defrost works. Is this part the blend door actuator?

My 2000 Ford Taurus will not blow air from the front or foot vents, only the defrost vents work. HEAT & AC not working either 6 Answers

My 2000 Ford Taurus has no air blowing from the front vents or foot vents, I can hear the motor running when I switch the air to the front vents, but air will only blow through the defrost vents. Be...