Have someone pressurize the cooling system with a coolant system pressure tester (a hand pump that attaches at the pressure cap fitting and pressurizes the system) and look for leaks....simple and easy. No reason at all to guess. You can find the tool at most auto parts stores or tool rental shops or any competent repair shop or radiator shop.shigirl42 said:I have just purchased (2 days ago) a 1989 fleetwood,and today something happened and water and anti freeze went all over, I was told either it was the water pump or a cracked block!!! Does any one know if there is a way to tell? any comments or sugestions would be so appreciated!!!