Where is the freeze plug that would cause the water to run right thru bell housi on 1995 Ford Taurus

it leaks even when car is not running

1 answer
On the back of the engine block.
If your freeze plug/plugs on the back of the engine are leaking you can be sure the rest of the freeze plugs in the engine are not far behind.
Where I live I recommend a cooling system service once a year to my customers. If you service the cooling system when you are supposed to you wouldn't have freeze plugs rusting out.