my son as a 1997 ford taurus, and theres no water in the reservoir, and when I go to try to put some in, it drains directly onto the ground, thought it was a crack in the reservoir, but theres not, so looked underneith the car and it was comming out of a small hose underneith.Theres a big hose that connects to the bottom of the reservoir that I imagine goes to the radiator and feels likes this small hose t's of that hose underneith, This hose is anly ablout 5 inches long and 1/2 inch diameter, and the water comes right out there. Any ideas why the water comes out there, and doesnt stay in the reservoir?