[maynardtruckin]

I have 2000 chevy Silverado 1500 4x4 with the 5.3 and it is overheating. When it first started I replaced the thermostat, then the water pump, then the radiator, and the clutch fan and it continues to over heat. With it still overheating I thought that I might have had a bad thermostat, or water pump so I changed them again as well as the sending unit, but alas it still is running hot . I also have tested for a blown head gasket and it is fine. Any help please before I use some DuPont wrenches on it.