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Is It Normal for a New Car's Engine to Be Noisy?

1 Answers
VanElla
07/29/25 11:54pm
Excessive engine noise in a new car is not a normal condition. If you encounter such an issue, you should promptly notify the 4S dealership for inspection and repair. The following factors can cause increased engine noise: Engine Mount Deterioration: Deteriorated engine mounts can fail to reduce vibrations. The engine and chassis are connected flexibly, with engine mounts in between. Over time, the rubber bushings of the engine mounts gradually age and lose their original shock-absorbing effect, naturally leading to increased noise. Exhaust Pipe Leakage: Leaks in the exhaust pipe can also result in noticeably louder noise. Excessive Tire Noise: Models equipped with run-flat tires typically produce more tire noise, which can be improved by switching to quieter tires.
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What does synthetic oil 5w30 mean?

Synthetic oil 5w30 means: The freezing point temperature corresponding to 5w oil is minus 30 degrees Celsius. The number after w is 30, which refers to the viscosity at 100 degrees. The larger the number, the higher the viscosity of the oil and the stronger its ability to withstand high temperatures. The viscosity of the oil indicates whether the oil is thin or thick. Low viscosity means it is thinner, with less resistance to relative movement under external forces; high viscosity means it is thicker, with greater movement resistance but better lubrication effects. Oil, also known as engine lubricant, serves to lubricate and reduce wear in the engine, assist in cooling, seal against leaks, prevent rust and corrosion, and act as a shock absorber. Oil consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties, while the additives compensate for and improve the shortcomings of the base oil, making them an important part of lubricating oil.
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What Causes Jerking During Acceleration in Gas-Powered Vehicles?

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What Causes the Steering Wheel to Become Lighter?

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What Causes a Urea Vehicle to Emit Black Smoke?

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What is the solution for the JAC EPC light coming on?

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