I thought it was the water pump at first but I just seen the pump is on the top at the radiator hose. I did a pressure test and found the leak coming out of the timing cover gasket. It doesn't leak until you give it more throttle and of course the rpm"s go up. I didn't see any external leaks from the intake as far as I can tell. What is behind the timing cover gasket that could be leaking antifreeze ? I thought it was just oil behind there ? 3100 engine.

 

I have done some research and found there is 2 coolant passages behind the timing cover.