need help locating ac drain under dash on a just purchased 93 ,passenger side is flooding!!thanks

 

It's basically dead center in the passenger foot space. The large black box behind the dash houses the AC, and you'll see at the back of that box where it forms a funnel that goes ot through the firewall. If you're looking in your engine compartment you'll see where it comes out a foot or so below the two AC lines.

 

thanks alot,that would explain why I couldnt find the drain tube inside!!