Why is the car noise particularly loud?
4 Answers
There are several reasons why a car may produce excessive noise: 1. Inadequate vehicle maintenance: Many vehicles today use engine oil that contains additional additives, most commonly "viscosity index improvers." Over prolonged use, as the engine operates for extended periods, the lubricating effect of the oil diminishes, and the engine's inherent wear resistance decreases, leading to increased noise. 2. Aging engine mounts: During vehicle operation, the engine continuously works. To dampen the vibrations caused by the engine, its mounting components typically combine metal and rubber. However, due to the engine's substantial weight, prolonged use can cause these surrounding components to deteriorate, especially the engine mounts, which can age significantly. If the mounts weaken, their ability to support the engine diminishes, resulting in noticeable vibrations and even causing the entire vehicle to shake, inevitably leading to noise. 3. Worn-out tires: Regular tire maintenance is essential. Over time, rubber tires can easily degrade. If driven on rough or uneven surfaces, the noise can become extremely loud. Even on smooth roads, neglecting tire maintenance or failing to replace them when the treads wear out can also cause noise. 4. Accumulated carbon deposits in the engine: Many drivers do not develop good habits, and inappropriate driving behaviors can lead to significant carbon buildup inside the engine. If the owner is careless and unaware of the need for timely cleaning, the only outcome while driving will be increased noise.
I've been driving old cars for decades, and there are quite a few common reasons for loud engine noise. As the engine ages, parts wear out, causing more shaking and roaring during operation. Oil issues are the most common, such as not changing the oil on time, leading to insufficient lubrication and increased friction. A loose belt system can also squeak—for example, a loose fan belt can sound terrifying during sudden acceleration. Another issue is a clogged air filter, which restricts airflow and makes the engine work harder, resulting in a loud roar. I've encountered this on the road, and it often turns out to be minor faults like worn-out spark plugs. I recommend checking the oil and filters every 5,000 kilometers. Loud wind noise at high speeds is normal, but if the engine makes unusual sounds, pull over immediately and don't push it. Get it checked by a professional shop to avoid engine failure.
I'm an ordinary office worker who loves road trips, and tire noise is the most annoying thing. When tires are deeply worn, uneven tread patterns cause constant friction noise on the road, especially the loud whooshing sound on highways that wakes up my kids. Driving with underinflated or flat tires is even worse, as tread deformation increases noise and reduces lifespan. Try switching to quiet tires—last time I changed them, the cabin became significantly quieter. Environmental factors also play a role, like rough or wet roads amplifying noise. Check tread depth regularly and maintain proper tire pressure to save money and drive worry-free. Don’t ignore suspension issues—if your car makes thumping noises over bumps, get it fixed immediately. Safety first—don’t take risks.
I'm an amateur car enthusiast, and exhaust pipe or bearing issues often cause noise. When the exhaust pipe joints rust and leak, they make a popping sound, and the escaping exhaust produces a harsh noise. Worn wheel bearings create a whirring noise like an airplane landing, which is easy to recognize. During cold starts, it's normal for the engine to roar before the oil warms up. If the drivetrain, such as the drive shaft, is loose, it can also cause a vibrating hum. Regularly inspecting and derusting the exhaust system can prevent 90% of problems—don't delay, or a burst pipe could harm the environment. Using basic tools to check bearing tightness allows for easy DIY fixes.
