Air will not come out through the vents

[john_iii]

go under car and look up by the wheel well and move flapout towards u

 

[loadedride]

Here is my situation on my A/C not blowing through the front vents. I have checked all vacuum lines from the actual a/c switches all the way to the vacuum resevoir. I actually replaced the vacuum resevoir with a replacement from a junkyard just in case it was the problem (negative on that). I have a few questions for you guys to help me narrow down the problem!

-If I were to pull off either one of the lines at the vacuum resevoir, should I be able to feel/hear suction in the line?
-Where does the initial vacuum pressure come from?
-Is there a way to test whether or not my car is even creating vacuum pressure for the a/c lines to make the vacuum motors/actuators work?
-What is needed to make the a/c come through the dash vents? (a certain vacuum motor or vent door?)

I've noticed that when I move the vacuum motor's arms to make the recirculating door open is does not change any of the vents blowing air; But I did push the arm on the vacuum actuator for the floor vents and air started blowing out of the floor vents. So wouldn't that mean I certainly have a vacuum leak because that actuator is not receiving vacuum pressure to make the motor work?

Sorry for a long post but I have been reading everything on here about A/C problems and haven't been able to fix it.

 

[stryker221982]

my problem sounds simular but i cant get the floor vents to shut off on any vent selection position. is there something that just controls the floor vents?

 

[mdfwoods]

I'm looking for the other end of that vacuum line that goes into the firewall and comes out under the dash. Any photos?

 

[mdfwoods]

By the way, thank you for the rest of the info. It has helped and I did find a broken vacuum line. just can't find the other end to repair it.

 

[ozmedia]

Most people don't realize that there is a volume of space there on both sides. The other side hides the horns, they are a pain to work on.

Still not enough room to stash a dozen of beer though. The days of the 67 Polara where you could have 2 cases under the hood are long gone.

 

[ozmedia]

my problem sounds simular but i cant get the floor vents to shut off on any vent selection position. is there something that just controls the floor vents?

You need a blend door fix, there's a lot of them depending on how much work you are ready for. Try the site search for BLEND DOOR FIX.