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Message: <blockquote data-quote="sakuraguy" data-source="post: 984671" data-attributes="member: 6441">Radiator System ChecksRadiator overheating is caused by anything that increases the heat load beyond what the radiator and cooling system can absorb and cool properly. Whether caused by a low coolant level, radiator leaks, malfunctioning radiator fans, a blocked thermostat, or more, overheating is often not a problem if the radiator is maintained and taken care of. Ultimately, the best way to minimize the risk of overheating is to maintain and service it properly so that it continues to operate at peak performance.The best way to provide maximum cooling is to make sure that the coolant is at full level. Many radiators and cooling systems will overheat if the coolant level is below normal because the steam that forms in the cylinders can prevent the thermostat from operating properly. The radiator’s thermostat needs to be in contact with the liquid coolant and if it’s affecting by steam pockets then the cooling system won’t be able to perform.If your engine or radiator overheats because of coolant loss then you should first try and find the source of the coolant leak. You should look at the hoses, the radiator itself, the heater core, water pump, thermostat and the plugs or gaskets. Start by making a careful inspection of the entire cooling system, not just the radiator itself. If you have the skills and time, you can also pressure-test the cooling system and radiator cap as this will reveal any internal leaks or seepage. You’ll know if your system if leak-free if it holds pressure for at least a minute or two.You can then test the water pump to make sure that there is no visible seepage around the shaft or vent. There should also not be any noise or loosening in the pump bearing itself. Follow by checking all of the hosing in and around the radiator or cooling system. If you find a hose that has cracks, bulges, or other visible damage, it will need to be replaced. Regardless of their condition, radiator and cooling system hoses that are more than five years old should be replaced to prevent damage.</blockquote>

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