Radiator fan quit working this morning and car overheated, got the fan working but now the radiator is still steaming after it runs for 5mins or so. Gauge never goes past N in normal but radiator gets hot. Pulled the t'stat and still smae problem. So radiator or water pump? No leaking from water pump, I am thinking the radiator may be stopped up. With out the t'stat in I can see some water movement just not alot and the fluid is overflowing with the cap off and when I put the cap back on, I can still see it coming out the seep hope on o.f tank.