it is probably your water pump
check you water (coolant) level, make sure thermostat is working, radiator leaks, sensor problem
If the front of the engine leaks coolant there is a blown head gasket. This requires immediate repair as it can lead to a blown engine if not managed appropriately.
Intake manifold gasket
have coolant system pressure tested and look for the leaks
check the heater core stopped up radiator
Yes. The original equipment intake manifold gaskets were of poor design and were prone to coolant leaks. Redesigned gaskets are available today.
A head gasket will usually fail when the engine overheats due to lack of coolant or extreme driving conditions. The easy way to check your head gasket for leaks ect. is to check the condition of your coolant and oil via the dipsticks, if your head gasket has failed your coolant and/or oil will be a creamy white colour.
How To Find & Fix Coolant Leaks http://www.aa1car.com/library/coolant_leaks.htm
I hav e the same problem
Probably the thermostat is sticking.
Replace the front seal which is located by the spline.
Where is it leaking from? Could be front or rear seal or coolant lines Did you change gasket when you changed fluid?