What might indicate an overheating engine?

An indication of an overheating engine is the presence of steam coming from under the hood. When the engine temperature exceeds normal levels, it can lead to the boiling of the coolant. This results in steam being expelled, often visible as it escapes from various areas under the hood, particularly around the radiator or coolant hoses. The sight of steam is a direct sign that the engine is not able to dissipate heat effectively, which typically points to issues such as coolant leaking or malfunctioning cooling components.

Other indicators, such as unusual engine noises or low oil pressure, might suggest other mechanical problems, and coolant loss might reflect a separate issue but doesn't provide an immediate visual indication of overheating. However, steam is a strong visual cue linking directly to the need for urgent attention to the engine's cooling system.