What are the symptoms of an overheating engine?

[EvangelineLee]

Symptoms of an overheating engine: 1. The coolant temperature gauge needle reaches the red zone; 2. During driving, you may feel the engine lacks power when accelerating or even stalls; 3. Opening the engine hood may reveal coolant spraying from the overflow tank or boiling in the expansion tank; 4. Cooling system hoses swelling like sausages; 5. A burning rubber smell. Causes of engine overheating: 1. Insufficient coolant level; 2. Clogged radiator; 3. Loose fan belt, resulting in insufficient airflow through the radiator; 4. Excessive concentration of antifreeze coolant. Normal operating temperature ranges for automotive engines: Passenger cars typically operate between 95-98°C; Commercial vehicles between 90-95°C; Sports cars can reach 105-115°C; Race cars operate around 130°C.