Exceptions are the heater core, which is located behind the dashboard, and the engine’s cylinder-head gasket, which we’ll get to in a bit.Ĭoolant is typically green or orange, but it’s sometimes pink or other colors. Most of the aforementioned components are found under the hood, so any coolant leaking from them will end up on the ground under the engine compartment. Unfortunately, that same pressure also amplifies any leaks. That pressure not only raises the boiling point of the coolant, it also helps keep the circulating coolant from bubbling, which could cause “hot spots” in the engine. Those components combined are part of the cooling system, which is kept under pressure by the radiator cap. Others … not so much.Ĭoolant can be found in the engine, the water pump at the front of the engine, the radiator, the radiator overflow tank and the heater core behind the dashboard, along with the valves and hoses that connect them. Some leaks can be fairly easy to find and fix. Coolant is also extremely poisonous, and its typically sweet smell attracts animals, so it’s best to track down and repair leaks promptly. If your car loses too much coolant, its engine could overheat. Several components in your car hold coolant, often called antifreeze, and any of them can get a hole or develop a leak.
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