AC won't change vents
I'm having an issue with my ac pushing air to all vents on the car but the pressure is fairly low. I'm unsure if its the AC control unit itself or possibly a line which is causing this issue. My ac control unit has a problem when trying to change the temperature, I can only go one degree at a time, wait 15-30 seconds and then proceed. That being it didn't bother me that much but now with this Texas heat I need my ac to at least blow in the direction needed.
In the past couple months I did have to replace my oil pressure sensor so the intake manifold did have to come off. The issue didn't occur immediately after I did this repair but could I have damaged the AC lines while doing this? If at all possible I would like to not remove the intake manifold again.
I do not have any codes at this time and appreciate any feedback!


