Why is the car making loud noises?
2 Answers
The reasons for loud car noises are: 1. High engine oil viscosity; 2. Carbon deposits in the cylinders; 3. Aging engine mounts; 4. Worn-out tires. Generally, as a car ages, the most noticeable change in noise comes from the engine, especially in vehicles that haven't undergone regular engine maintenance. The noise is particularly pronounced in such cases, so it's advisable to maintain the vehicle regularly. For the engine, if oil that is too viscous is used, it can result in insufficient oil flow into the hydraulic lifters, causing valve noise and creating loud sounds. This issue can be resolved by switching to a lower viscosity oil.
I’ve been bothered by excessive noise while driving recently, which is likely caused by tire issues or exhaust system malfunctions. When tires are severely worn or underinflated, the rolling noise becomes particularly noticeable, especially on highways where it rumbles incessantly. If the exhaust system is corroded or leaking, a low hissing sound may occur during acceleration, sometimes even causing the entire car to vibrate. Additionally, aging engine components or insufficient engine oil can make the noise rough and harsh. Loose suspension parts are another common culprit, producing annoying creaks on bumpy roads—it’s unbearable over time. Excessive noise isn’t just irritating; it may also indicate hidden safety risks. If the noise suddenly worsens while driving, visit a repair shop immediately to prevent minor issues from escalating into costly repairs. Regular maintenance, such as tire replacements and exhaust inspections, can significantly reduce noise levels.
