I have a 94 Cherokee that overheats. I've had a problem where after I check upon overheating and the upper radiator hose is only partially hot, which meant that water was not circulating. So I changed out the thermostat and the water pump but same problem. Also, due to the overheating, my head gasket blew and I tried using block weld through my radiator, that could also contribute to the problem. Anyways, right now I'm attempting to clean out the radiator as a clogged radiator is my only option left. Would anyone know what the problem is and if I should change out the radiator also?