Car radiator stops the engine from getting too hot. If it starts leaking or is damaged, this could spell disaster for your vehicle. If this happens, replace your car radiator as soon as possible. The engine in your car generates a lot of heat. If it gets too hot, the pistons will generate too much friction, which in turn may seize your engine. To prevent this problem, you can use water and anti-freeze to absorb heat by passing through your engine. These liquids make their way to the radiator which then transfers the heat into the atmosphere. The radiator helps preserve the life of your engine. A good one will preserve it for longer, as well as helping your car to run at its most efficient. The most obvious sign of a faulty radiator is a visible leak. If you see puddles of red or green liquid (engine coolant) forming underneath your engine when your car is stationary, you must replace your radiator immediately. Not doing so will cause serious damage. You should also bear in mind that engine coolant is toxic to both humans and animals. Low pressure is a sign that your car radiator is suffering from corrosion. Your radiator should produce between 10 PSI and 12 PSI. If the pressure level is lower than this, then you have a problem.