What Are the Reasons for High Temperature in a Car's Engine Compartment?
2 Answers
The reasons for high temperature in a car's engine compartment are: 1. Insufficient coolant; 2. Blocked cooling radiator; 3. Loose fan belt, resulting in insufficient airflow through the radiator; 4. Loose water pump belt or eroded water pump impeller, reducing coolant flow; 5. Excessive concentration of antifreeze coolant; 6. Thermostat failure; 7. Air in the cooling system; 8. Scale or debris blocking the engine's internal passages; 9. Damaged cylinder head gasket. The solutions for high temperature in a car's engine compartment are: 1. Add coolant; 2. Adjust the fan belt; 3. Replace or adjust the water pump belt or impeller; 4. Blow compressed air through the radiator grille; 5. Clean debris from the engine.
I've seen many cases of high engine compartment temperatures. Common causes include cooling system issues, such as a clogged radiator or insufficient coolant, which prevent heat from dissipating in time; fan failure is also critical, as a non-functioning electric fan can worsen heat buildup; engine overload itself, like prolonged high-speed driving or overloading, puts excessive strain on the engine, generating more heat than usual; additionally, a clogged condenser in the air conditioning system can affect heat dissipation; in hot summers, rising external temperatures directly make the compartment hotter. If not handled properly, the engine can easily be damaged or even catch fire. I recommend developing a habit of regularly checking the coolant, letting the engine cool down after parking before opening the compartment for inspection, and if problems are found, it's best to visit a repair shop as soon as possible to check the system.
