Ok, i'm having a problem with my radiator overheating. it overheated and spewed fluid all over my engine. I added more coolant and runs fine... but it's got 150,000 miles on it and I need to flush the radiator. I bought a flush and fill kit from prestone, but can't figure out which is the heater inlet hose. I see 2 hoses on top, a small one and a really big one, then there are 2 hoses underneath the radiator. Anyone know which one is the inlet hose that i need to cut to install the tee?? any help would be great.