My car is leaking coolant from the right side when the car is running. I talk to a neighbor cadillac mechanic and he said that it would most likely be my waterpump, but could that might mean that its a radiator hose or something else leaking? and when it leaks it drips from the bottom. Any ideas? im suppose to take it to cadillac but am afraid it will over heat and dont want to waste money if its something i could fix at home thanx.