Which of the following circumstances can cause abnormal overheating of the vehicle's engine?

Question

DentroTest · Accepted Answer

Engine overheating is commonly due to failures in the liquid cooling system. If the water pump belt is loose or breaks, the pump stops moving the coolant through the engine block and the radiator, so the heat generated by combustion cannot be dissipated. Other common causes may be the thermostat being stuck closed or faults in the fan. By contrast, antifreeze evaporating is not a normal cause, because the cooling circuit is hermetic and sealed, so the liquid does not evaporate under normal conditions. And the proximity of the cylinders to the exhaust manifold is part of the manufacturer's original design and does not cause abnormal heating.

Which of the following circumstances can cause abnormal overheating of the vehicle's engine?

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