FIX for AC blowing out of floor and defroster vents

[402Z]

Hello everyone,

I was getting the dreaded AC blowing out of the floor and defroster vents no matter what mode I had the HVAC control unit on. I researched and found the typical HVAC controller malfunction, control head unit possibly might not be working correctly, etc.

My radio is not working so I dropped the passenger knee pad panel to access the CDM, and noticed that there was a burnt connector tube that connected two vacuum lines together. I put a pause on troubleshooting the CDM to fix this vacuum line. I was not sure what the vacuum lines were for but after some research they provide vacuum for the HVAC controls that direct what vents the AC will blow out of. Went to the auto parts store, bought a new vacuum line to connect the two vacuum lines for the HVAC controller and sure enough my AC was blowing out of the head vents now. Was very happy that I did not have to mess with the HVAC controller under the driver-side knee panel, or the HVAC head unit. Easy fix!

For those of you that are having issues where your AC is blowing only out of the floor and defroster vents, definitely check under the passenger side knee panel and look for those two vacuum lines. A very easy thing to check before diving into the much more difficult stuff. That courtesy light bulb for the floor gets really hot and could burn your vacuum connector if they are touching which is what happened to me. I will provide pictures of where it is located as well. Hope this helps anyone that has this dreaded issue. Thanks.