Common Causes Of Overheating

Having a car is great

Having a car is great. The ability to get from point A to point B in a quarter of the time it would take to walk is convenience at its best. And the freedom driving offers is unmatched by most anything. Whether getting to work or going to see friends or family, your vehicle is your main extension to the world. That is, until it stops working, or breaks down due to overheating. How does this happen? Well, there are a number of ways.

Leaking Coolants

Your vehicle is filled with fluids of all kinds. Some fluids make it run; some fluids cool it down. The most common fluids in a motor vehicle are engine oil and gasoline. Although they fuel the car, these two fluids aren't what can cause overheating. Coolant is often the culprit in cases of vehicles overheating. Coolant can leak out through a crack in the cylinder, or a weak gasket head. It can also leak from radiators, the water pump, a heater hose and a number of other places.

When the coolant leaks, it evaporates, causing areas of the vehicle which are of high heat already to overheat. There is usually no external way for an untrained eye to tell where the coolant is leaking to. Even if it leaves behind residue, there is no exact way to place a stain to discern where the fluid is coming from. Another less common fluid leak is a faulty water pump. This is probably the most dangerous type of leak, as it can cause the engine to overheat. If you see any leakage stains in your garage, or wherever you park your car, and your vehicle is overheating, it is highly suggested that you bring your car to an auto shop immediately.

Bad Fan Causing Overheating

Many of the cars on today's market have rear wheel drive. With these types of vehicles in particular, a cooling fan has something known as a "clutch." A defective clutch can cause overheating, as it causes slippage, not allowing the fan to cool as much as it is designed to. There are also cases where the fan simply does not work. This can be caused by a number of factors, including a broken fan belt. It isn't uncommon for a fan to have a missing shroud as well, which can decrease the effectiveness of the fan's cooling ability by up to half.

Fan problems are one of the most common causes of vehicle overheating, and it is for this reason they are often overlooked. Just as with fluids, there is no way for an untrained person to diagnose a defunct fan. However, if your vehicle is making unusual sounds, or is running louder than normal, you may be able to safely guess that a fan is the culprit.

Bringing Your Overheating Car to a Mechanic

Whether damaged radiators are the culprit, or leaking fluid, overheating problems are dangerous, and should be addressed as soon as possible. Bring your vehicle in to a local, reputable mechanic and have them look it over. They should be able to identify the problem and give you an estimate on costs and repair time.

by: Dan Burns

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