In summer, the problem of an overheated engine is more relevant than ever, although it is not purely seasonal. It is overheating that is the most common cause of engine failure. And when such a nuisance happens, the first step to solving it is to correctly identify the source of the problem..
Reason # 1 Faulty thermostat. Problems with the thermostat are most often associated with a loss of elasticity of the movable element, which, in turn, is caused by deposits accumulated in the cooling system. The most common source of sediment is hard water, high in salts and minerals..
Because of this, the thermostat stops responding to changes in the temperature of the liquid that exits the motor and begins to circulate along a small or large circuit.
If the liquid enters a small circle, overheating is inevitable. When hit in a large circle, the engine will not warm up well.
Reason number 2 Incorrectly adjusted ignition or injection. Due to improper adjustment, fuel release occurs while it is still burning. Such a malfunction leads to a rapid increase in the temperature of the exhaust gases. Since the bulk of the heat comes to the cylinder head from the exhaust system, and its cooling mechanism is quite complex. As a result, boiling the engine is almost inevitable.
Reason number 3 Air plug in the cooling system. A plug or air bubble in the system may appear for several reasons:
- local overheating of the liquid;
- depressurization of the cooling system or its individual elements.
In both cases, fixing this problem in place is fairly easy. You just need to feel the hose and drive out the cork.
Reason No. 4 Clogged radiator. Dust, dirt, poplar fluff and other small debris that enters the radiator are the most common causes of engine overheating. If only the outer side of the radiator is clogged, then it is enough to clean it yourself.
A more complex option is the internal contamination of the radiator, which can provoke scale from water and some types of sealants. Here you can not do without professional help.
Reason # 5 Inactive fan leads to the fact that the cooling radiator stops spinning. The reasons why the fan fails or does not work efficiently are mass. It could be a broken sensor, a clutch, an electric motor and just a loose wire.
So we examined the most common causes of engine overheating. In order to avoid them, elementary preventive measures in the form of inspection.
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