Why Is There Loud Noise During Engine Acceleration?
1 Answers
Engine acceleration noise can be caused by aging or loose engine mounts, improper oil quality, or carbon buildup in the engine. The specific reasons are as follows: Aging or Loose Engine Mounts: Engine mounts are rubber blocks placed between the engine and the vehicle frame. Their purpose is to reduce vibrations and absorb shocks during engine operation, while also securing the engine in place. If these mounts become aged or loose, the engine may vibrate, producing louder noises as speed increases. The solution is to tighten or replace the engine mounts. Improper Oil Quality: If the oil viscosity is too low, it can lead to insufficient lubrication, causing wear on engine components and abnormal noises. Conversely, if the oil viscosity is too high, it can increase engine load, also resulting in noise. The solution is to use the oil grade specified in the vehicle manual and avoid mixing different brands of oil. Engine Carbon Buildup: Excessive carbon buildup inside the engine can affect ignition energy, air intake efficiency, and the air-fuel mixture ratio, leading to unstable power output. This can cause vibrations during idling and acceleration, with noise subsequently entering the cabin. The solution is to visit a 4S shop for targeted engine cleaning to remove carbon deposits.
