I have water coming into my 1990 Jeep Wrangler under neath the dash board

It is not the coolent it only come in when it rains out. In another words it's only water coming into the jeep underneath the dash and interior of the fire wall. any suggestions and thank you for answering

could be windshield is leaking at seal or its rusted away in corner of tray under wiper vent tray. sorry i miss read your post. remove tray under wipers and run a garden hose there and see if it leaks inside if not run water on corners of windshield

No it does not taste sweet just water