What are the causes and solutions for engine overheating?
2 Answers
The causes of engine overheating are: 1. Insufficient coolant due to cooling system leakage; 2. Stuck or damaged radiator fan failing to provide cooling function; 3. Prolonged high-speed driving prone to cause overheating. The solutions for engine overheating are: 1. Adding a small amount of distilled water as an emergency measure; 2. Safely pulling over and waiting for the temperature to drop before proceeding to a repair shop for maintenance or radiator fan replacement. Hazards of engine overheating: Normal engine operating temperature ranges between 85 to 95 degrees Celsius. When overheating occurs, engine oil viscosity thins, lubrication performance decreases, and high-speed components like pistons and valves become prone to deformation, resulting in engine power loss. In severe cases, it may cause cylinder scoring or crankshaft bearing seizure, requiring major engine overhaul.
Decades of driving experience tell me that the most common causes of overheating are a clogged radiator or a faulty fan, especially in hot weather or during long-distance driving. Other possibilities include insufficient coolant, a stuck thermostat, or a leaking water pump. Once the temperature gauge spikes, I immediately slow down and pull over, turning off the engine to let it cool completely. Check the coolant reservoir—if it's low, top it up with purified water as a temporary fix, but avoid opening the cap immediately to prevent burns. Get it inspected by a mechanic promptly, as delays can damage or even destroy the engine. Last time I had an overheating issue on the highway, the fan belt snapped, costing me half a day. To prevent problems, clean the radiator and replace the coolant every season, and if you drive in mountainous areas often, pay attention to lower gear RPMs.
