no matter what setting the switch is on it wont blow out the vents it only blows out both the defrost and the floor, or it turns off but nothing at all comes out the vents what do you think is the solution to this problem?
Sounds like a vacuum line that runs to the intake fell off. If not that, could possibly be a broken mode door in your heater box. Check the vacuum lines to make sure, you'll see one coming out of the firewall.
I had the same problem. Simple fix for me: pop the hood, look on the actual hood for a ball looking thing. If there isn't a hose running to it, thats most likely your problem. Find a hose thats not plugged in around there and hook it back up.