Where exactly is the coolant coming out of? Is it a tube connected to the waterpump, or the housing of the waterpump?
I had a leak and it was a coolant hose. Disconnected, cleaned parts and reassembeled and problem solved.
If it's coming from your pump (where the two parts meet) then you may just need a new waterpump gasket...
Same waterpump in 4 cyl & 6 cyl????