A/C question

[steelerguy]

Originally Posted by dallaslouie

my 94 corsica ac blows the thru the defroster vent and floor. I changed the ac/heater switches and still blows the ac the same way does anybody have a answer to the problem.

Don't know anything about corsicas but I do believe that vent routing & rerouting is done by vacuum lines & a vent control module. Check a manual or look under the dash for a vacuum module. The line to it may be disconnected, broken or cracked. You might even be able to hear the vacuum leak while changing the defrost/vent positions. Never actually fixed a vacuum problem myself, but have watched the A/C flow go to the defroster vent when removing the vacuum line on the vent control module on my Durango. It is on the passenger side, just under the dash.

Good Luck