What Causes Car Radiator Overheating

A common problem that many drivers may encounter during the summer is having their car overheat, especially if you are driving an older vehicle. There are a few reasons why your car may overheat; but usually it is because you are low on coolant. However, the solution to your car radiator overheating may not always be as simple as adding additional coolant.

Common Cooling System Issues
You will want to rule out reasons why the coolant level is low in the first place. If you add coolant to your vehicle and still experience frequent overheating that requires you to add more, it is very possible you have a leak in your cooling system. A telltale sign is drips or puddles under your car. This leak could be coming from a hose, your radiator, or water pump. Your mechanic can pressure test your system to determine the source of the leak.
Other common cooling systems that could cause overheating, including:

• The radiator cap needs to be replaced because its gasket has deteriorated
• Your accessory belt that drives the water pump is slipping
• The thermostat needs to be replaced
• Your radiator is clogged and needs to be steam-cleaned
• The bottom radiator hose collapses under pressure
• Broken fan belt or fan malfunction

Additional Reasons for Overheating
Problems that are not related to your cooling system could cause your car to overheat. Your engine may be dry because you are low on oil. This could cause major damage to your engine, so be sure to check your oil regularly and have it changed as recommended. Your timing may also need to be adjusted because late timing can also cause overheating.
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