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Radiator Repair Information > Over Pressurization

Read about radiator over pressurization and defective pressure cap that may destroy radiator at

An efficient cooling system is essential in protecting the engine from overheating. Water coolant levels should be checked monthly and even more frequently in the summer. Water and coolant levels should be equal parts. Particular attention should be given to water level in the radiator when the engine is cold. Normally radiators have pressure rated caps. When the coolant reaches very high temperature, it forces its way through a valve in the pressure cap. The overflow is then collected into coolant reservoir. When the engine is cool, the vacuum created in the radiator draws the overflow back. Pressure caps start to malfunction after a year or so due to poor manufacturing quality and may cause radiator over pressurization. In this case, the coolant evaporates through the defective pressure cap when it reaches increased temperatures, instead of flowing into the coolant reservoir. The water level decreases when this evaporation results. This defective pressure cap can destroy radiator and harm your engine if not taken care of in time. Beware that loss of coolant can come from many different areas on your engine. One of the most difficult radiator leak stop is a leaking intake. You should time your annual cooling system service so that you are getting it checked right before the summer rolls around. Any hose that is cracked, leaking, feels hard or spongy when squeezed should be replaced immediately. Be sure that when you are replacing hoses, you are using car parts wholesale that are of high quality, correct size, length and its shape. Fittings and clamps should also be of high quality and good fit. Lastly, check the fan belt because it also plays an important role in cooling the engine.

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Over Pressurization
Over Pressurization

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