What are the causes of abnormal noise in the 14th-generation Sylphy engine?

[ORemington]

The causes of abnormal noise in the 14th-generation Sylphy engine could include engine overheating—check the cooling system. When the car accelerates, the engine may produce a whooshing sound, or it may also occur when decelerating, changing with RPM variations. Possible causes include a damaged alternator bearing, issues with the power steering pump, or water pump. 1. Contaminants inside the engine: It is recommended to change the engine oil and oil filter, clean the engine, or it could be a valve problem. While driving, there may be no issues, but during acceleration, a rattling sound may occur. It is advisable to check the ignition timing settings, as the engine may be overheating, have carbon buildup, or be using poor-quality fuel, requiring higher-grade fuel. 2. While driving: Acceleration may seem normal, and ignition may also appear normal, but the engine RPM may be too high while the speed does not increase accordingly. Try checking the coolant, oil pressure (too high or too low), inspect the oil pressure gauge, or there may be an issue with the ignition timing settings, which could also lead to such symptoms. Other possibilities may include internal engine problems.