I have a legacy that overheats when it warms up. However there are no leaks from the system. When I drive it, it will overheat but the only leak I see is from the radiator cap which will steam out. I have attempted to bleed the system because there is gurgling but each time i try to bleed when it gets warm the coolant will start just sloshing up and out of the funnel I use. Idk if its a head gasket the fluids are all clean and there is no white clouds from the exhaust. It also seems as if the higher hose is pressurized. Any suggestions?