How could you tell if the radiator is clogged or if the thermostat is stuck or if the gasket is blown?

Answer:

Run engine to normal operating temperature witout radiator cap

Observe coolant circulation

If coolant blows out of radiator - could be a stuck thermostat

If no circulation could be a bad water pump

First answer by Baldfatguy. Last edit by Baldfatguy. Contributor trust: 2032 [recommend contributor recommended]. Question popularity: 11 [recommend question].