Why is the car engine so noisy?
2 Answers
Here are the specific reasons why a car engine is very noisy: 1. Aging or loosening of engine mounts: Engine mounts are rubber blocks placed between the engine and the car frame. Their function is to reduce vibration and cushion the engine during operation, as well as to secure the engine. If the engine mounts age or become loose, the engine will shake, resulting in abnormal noises. 2. Engine misfire noise: An engine misfire mainly refers to one or more cylinders not working properly. This is usually manifested by obvious intermittent exhaust gas flow from the car, along with severe shaking of the exhaust pipe, and a clear abnormal noise from the engine can be heard.
A loud car engine could be related to several common factors. You should start by checking the simpler things first. For example, insufficient or poor-quality engine oil can increase friction between components, leading to noise. I've experienced this while driving—stopping to add good-quality oil quickly quieted it down. Another issue could be loose or worn belts, especially the timing belt. If you hear a squeaking sound, it might need tightening or replacing, otherwise, the engine won't run smoothly. Problems in the exhaust system, like a leaking muffler, can also amplify noise, and sometimes rusted exhaust pipes cause a thumping sound. Additionally, a dirty air filter or aging ignition system components like spark plugs can lead to incomplete combustion, resulting in a ticking noise. I recommend regular maintenance, such as checking the oil and filters periodically, and not ignoring increased noise to avoid minor issues turning into major repairs.
