[philipwight]

there is a seep hole at the bottom of the water pump that goes out and that is usually what goes wrong with the pump.  When you have the water pump out look at the bottom of it and there is a hole in the housing and if that hole has calcium deposits around it then most likely the pump is bad and you need to get a new one. If you want to save yourself the 20-30 for a cheap a waterpump then take the water pump out and put a new seal on it(use the clear rtv) and put it back fill it up and see if you can see water leak out. If you do this make sure that the area you apply any silicone to is very dry.

philip