Recently I've had overheat problem. It's running hot going uphill. Freeway and town is fine. I've followed the Fan Clutch thread. I filled the old fan clutch with oil but still overheat. I bought a new Hayden and tried it out today (low 90's degrees), but overheat again. I already changed the t-stat. Now, is it possible the radiator or waterpump is bad? Which is it is the question. Need help here. Thanks. Oh, it's a '95 with about 210K.