What can be the effect of low coolant levels in an engine?

Low coolant levels in an engine can lead to overheating because the primary function of coolant is to absorb heat from the engine and dissipate it through the radiator. Coolant circulates through the engine, drawing heat away from critical components, and if the levels are low, there is insufficient fluid available to perform this heat exchange effectively. As a result, the engine may reach temperatures that exceed safe operational limits.

When an engine overheats, it can cause significant damage, including warped cylinder heads, blown head gaskets, and other serious mechanical failures. It is crucial to maintain the proper coolant level to ensure the engine operates within its temperature range, thereby protecting it from damage and ensuring longevity.