Heater controls/vaccum locations

Son's 93 Corsica 4 cyl. with A/C. Air comes out of vents only, cant get it out of top or floor. Took heater controls out, unplugged the vacuum line assby and no sounds, or air coming form them.

Blower blows hot/cold air through vents only. Fan works fine as well. Anyone have a schematic on the vacuum locations or know where out of the fire wall they come out at ?

Also, has anyone ever experienced water, coming from over driver side onto the floorboard? When it rains, the driver side floor board is soaked. I'm guessing it may be coming from the top corner of the windshield, but could that cause this?

Thanks!

The Corsica is a sister to the Beretta .

Check for vacuum leaks, broken lines near on on engine. Loss of vacuum means no controls for heatimg. As far as leak...windshield a possiblity but I seem to remember some folks complaining about leaks from firewall area as well and area at bottom of windshield. Sometimes people will lose the car's CPU because of leaks....