Quote Originally Posted by scottydoggs View Post
clean the engine up get it dry, then pressure test the system. its a pump that you put where the rad cap goes and you pump it up, then go look for the leak, you do this with the car off.
do this!

you can test it when its NOT HOTT! and you will find out if and where you have a leak because 1 you wont have a running engine and 2 it wont be hott...

I sell them on my truck. very very handy tool! it will be cheaper to buy the cooling system pressure tester than it will be to pay a mechanic.