What Causes Engine Abnormal Noise During Acceleration?

[CoraRose]

Acceleration engine abnormal noise is caused by excessive valve clearance, loose interior door panels, or lack of engine maintenance. Below are detailed explanations for these causes: Excessive Valve Clearance: The opening and closing degree of valves affects the vehicle's power output. However, valves will wear after prolonged use. When the valve clearance becomes too large, abnormal noise occurs during acceleration. Loose Interior Door Panels: If the noise is heard inside the cabin during acceleration, it is likely caused by loose door panels. Vehicles that have had their center console removed previously are more prone to such abnormal noises. Lack of Engine Maintenance: If the engine oil is excessively dirty, it will affect the lubrication performance of the engine, making the vehicle more susceptible to abnormal noises.