1992 Chevy Tahoe water issues

Your windshield may have came loose from the euathane that hold it in and now the water leaks in down the edges by the A pillars and behind the dash down to the floor. Or the door seals have gone bad. Or at last resort you may look under the cowl where the wipers sit and see if the tub under the cowl has rusted through and is leaking into the cab.