I have a 1986 Camaro and it is overheating. Thermostat was changed and fan is working. When it over heats it doesnt loose any coolant. Hoses are hot. I dont see any white smoke. No milky oil. Car runs good except sluggished going up hills. Dont see any leaks. I have notice that a water pump I replaced 2 years ago is all rusted on the outside. Could that be a bad pump? Why would a water pump rust on the outside?
Water pumps have no protection so over time they rust, as do other underhood parts. NEVER replace any part 'till you KNOW the problem. You need to visit a RADIATOR SHOP and have your radiator looked at. Water pumps don't cause overheating, radiators do.
replace your water pump or top overhaul
