What Are the Reasons for Excessive Noise from a Car Engine?
2 Answers
Reasons for excessive noise from a car engine: 1. Excessive carbon buildup in the engine; 2. Use of inappropriate engine oil or dirty engine oil. When there is abnormal noise from the engine, analyzing the noise can help identify the issue. Methods to address excessive engine noise: Check the fuel pump, cooling system, and whether the exhaust pipe is cracked; adjust the valves; check the oil pressure; inspect the muffler and exhaust pipe for damage; recommend changing the engine oil and oil filter, and cleaning the engine. The car engine is the device that provides power to the car, serving as the heart of the vehicle, determining its power, fuel efficiency, stability, and environmental performance. Depending on the power source, car engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines, among others.
I found that excessive engine noise in a car can stem from various causes. The most common is a loose or worn engine belt, which produces a high-pitched squealing sound. Another issue could be related to engine oil—either it's too thin or insufficient, leading to inadequate lubrication and increased friction noise. Exhaust system leaks are also a major culprit, as cracks in the exhaust pipe can cause a deep rumbling sound. Additionally, incorrect valve clearance or a clogged air filter can make the engine work harder, amplifying noise. When encountering such sounds, I recommend first checking the engine oil level and condition while listening for patterns in the noise. If the problem is worse during cold starts but improves after the engine warms up, it might just be normal operation. However, if the noise persists, it's best to stop driving immediately and seek professional diagnosis to prevent further engine damage and higher repair costs.
