In this article we will discuss the most common problems in a vehicle's cooling system and how these problems can be diagnosed and fixed. What are the most common failures in the cooling system? The most common failures in a vehicle's cooling system include coolant leaks, clogged radiators, faulty thermostats, fans not working properly, and faulty water pumps. How is the cooling system checked? To check the cooling system, it is important to check the coolant level, check for leaks, check the radiator and hoses for blockage or damage, and check that the thermostat and fans are working properly. How is the automotive cooling system diagnosed? To diagnose the automotive cooling system, tools such as a pressure gauge to measure system pressure and an infrared thermometer to measure the temperature of the radiator and hoses can be used. A visual inspection can also be done to detect leaks, clogs and other problems. What is the cooling system of an engine? An engine's cooling ...