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 Prevent Your Engine From Overheating
The last thing any motorist wants to see while on the road is a warning light flashing in his/her face, or worse yet, steam emerging from under the hood of the vehicle. Yet overheating happens all too often, especially in traffic jams, and can cause serious engine damage.
Overheating can be caused by anything that decreases the cooling system's ability to absorb, transport and dissipate heat. This includes a low coolant level, loss of coolant (through internal or external leaks), a blocked thermostat, a plugged or restricted radiator, a faulty cooling fan, a slipping water pump belt, an eroded or loose water pump impeller or even a defective radiator cap. It can also be caused by having the air-conditioning on at maximum level while the vehicle is stuck in heavy traffic during very hot weather.
In order to avoid the engine overheating, check the coolant level periodically. It should be at least at "min" point in the extension tank. If it's lower, add the coolant fluid to the "max" point. Never open the radiator and the expansion tank cap when engine is hot! If you find any coolant leak, have it fixed as soon as possible - it may cause engine overheating.
If you notice that the engine temperature often rises higher than normal, have your engine inspected as soon as possible. Check the radiator to make sure it is not obstructed with dirt, or debris. If the coolant has been neglected and the system is full of rust and sediment, it's possible that the radiator may have some internal blockage.
The cooling fan also needs to be checked to make sure it is working properly. Check to see that the fan works when the engine gets hot and when the air conditioner is on. If the fan fails to work, the fan motor could be bad and may need to be replaced.
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