What Causes Poor Engine Cooling?
1 Answers
Poor engine cooling can be attributed to the following factors: 1. Engine-related issues: Blockages in the engine's water passages may restrict water flow. 2. Coolant issues: The coolant may have been in use for too long and exceeded its expiration date. 3. Cooling system issues: Check the cooling fan and radiator. If the radiator's external mesh is clogged, it can lead to poor cooling and high temperatures. The consequences of poor cooling are as follows: 1. Traffic congestion: In heavy traffic or during prolonged idling, the engine's temperature gauge may show excessively high readings, the electric fan may operate at high speed for extended periods, engine noise may increase, and this issue becomes most noticeable when using the air conditioning in high temperatures. 2. High ambient temperatures: Prolonged use of the air conditioning in extremely hot summer weather can cause unstable idling, significant fluctuations in RPM, weak acceleration, and abnormal engine noises. 3. Hot engine restart issues: After turning off a hot engine and waiting for over ten minutes, restarting the engine may become difficult. Sometimes, the engine may suddenly shut off while driving. 4. Air conditioning issues: When the engine is cold, the air conditioning may provide very cool air, but when the engine is hot, the cooling effect may be poor, accompanied by loud resonance noises in the air conditioning system. 5. Clutch issues: During hot engine idling, the air conditioning compressor's clutch may frequently disengage and reconnect, resulting in poor air conditioning cooling when the engine is hot.
