Air Only Blows Out Of Floor

It works this way in both the manual and automatic modes.

Air only blows out of floor.

On the astros when the heat only blows through defrost and floor it s due to a broken vacuum line. My question is this. I know there is often a faulty check valve on the vacuum line but are. Air conditioning problem six cylinder front wheel drive automatic 113 000 miles.

As stated in the title i am only getting air blowing out of the defrost and floor vents but not the ones in the dash. Owners have reported several instances of the air conditioning not blowing through main dash vents or only blowing through the floor and defrost vents. I get good heat and air conditioning from my front vents but when i select floor or defrost vents the air still only blows from front vents. It does blow cold just cant get it out vents.

Thank you so much. No air from floor vents or defroster vents only front vents. The factory vacuum check valve is very hard to get to. Often this is experienced after replacement of the battery.

Which part controls the vents in which the air flows. During battery replacement the control module for the mode actuators may lose its memory. My air conditioning is blowing cold air but it directs the flow to the windshield and floor and not from the vents in the dash. I just started i checked the air vac answered by a verified jeep mechanic.

Like grumpy and others who gave suggestions on exhaust. My a c blows out dash defrost and floor only. I have installed a new blend door actuator at the passenger side and realized after the fact that wouldn t have helped my issue. Air only blowing out of defrost and floor jun 28 2016 2 35am.

After installing a new blower fan motor the ac would only come out the defrost vents. Also how do i respond on post to say thanks to all that give info. So i bypassed it.