What is likely to happen if the cooling system in an engine fails?

When the cooling system in an engine fails, the most likely consequence is engine overheating. The cooling system is responsible for regulating the temperature of the engine by circulating coolant around it to absorb heat generated during combustion. If this system fails—whether due to coolant leaks, a malfunctioning water pump, a broken radiator, or a failed thermostat—the engine's ability to dissipate heat is compromised.

As a result, excessive heat can accumulate within the engine components, leading to a range of severe issues, such as warped metal parts, damaged gaskets, and potentially complete engine failure. Overheating can also trigger warning lights and lead to unsafe driving conditions, making it crucial to maintain the cooling system regularly to prevent such mechanical failures.