jman9895 wrote:
if you can, get a cooling system pressure tester. Its a specialty tool but it makes diaging cooling system leaks nice and easy. I believe harbor freight sells them as well as atd, snappy, matco... etc...
You pop off your radiator cap and put this thing on, then pump up the pressure of the cooling system. This will let you look and listen for leaks, without having the thing running and hot. It also allows you to watch the pressure drop.
After pressurizing it its a matter of watching and hunting around to try to find where the leak is.
Depending on where you are you can borrow mine if you'd like.. I'd link you to a couple but they block amazon and stuff here at my office..
worth a shot, thx