What might cause an engine to overheat?

An engine overheating can often be attributed to factors related to its cooling system, making low coolant levels or a malfunctioning thermostat a primary concern. Coolant is essential for regulating engine temperature, and if the levels are low, there is insufficient fluid to absorb and dissipate heat. This can lead to overheating as the engine works harder than normal and generates excess heat without effective cooling.

Furthermore, a malfunctioning thermostat can prevent coolant from circulating properly. The thermostat regulates the flow of coolant based on temperature, and if it is stuck closed, coolant cannot circulate through the engine and radiator as needed, leading to overheating. Proper operation of the cooling system is crucial for maintaining optimal engine temperatures and preventing damage due to overheating.

In contrast, while very high oil levels could potentially lead to other engine issues, they are not directly linked to engine overheating in the same way that coolant levels and thermostat function are. Excessive tire pressure pertains to tire-related factors rather than engine cooling, and improper air filter installation affects airflow but would not cause overheating directly.