A/C, Heat, Fan, etc only blows out defrost vent

[MustangLife]

I can't get any air or heat to blow out of my vents or floor. It only blows out of my defrost vent. Any ideas? And its like a heat index of 90 out right now, its pretty damn not so comfy in the car.

Thanks
Josh

 

[timeless2]

You most likely have a vacuum leak, as the baffles dividing air for the climate control are actuated by air pressure.

 

[MustangLife]

Found it, vacuum leak, i must have accidently unhooked it when pulling off a coil pack yesterday when i changed my plugs.

 

[Mickey21]

So your line in your engine bay was loose? Can you show a pic of the line in question. There are several of us on here that are having the same problem as well. It would help to know which lines to check that mattered... Thanks in advance for the help.