What Causes the Vibration Sound Inside the Car?
2 Answers
Here are the reasons for the vibration sound inside the car: 1. Loose items: Pay attention to checking the storage compartments, the interior of the center console, the nose pads of sunglasses in the glasses case may also rattle, as well as whether the wiring of the aftermarket dash cam is loose. Method to check for such abnormal sounds: Make a fist and tap on certain areas inside the car. When the sound appears upon tapping a specific area, identify all the objects around that area, remove or secure them one by one, then tap again to confirm. If the sound disappears, it means the removed or secured item was the source of the noise. 2. Transmission mechanism: If the abnormal sound occurs regardless of low or high speed, and the frequency increases with speed, it indicates an issue related to the transmission mechanism. In this case, inspect the external transmission components such as tires and CV joints. This type of sound is transmitted along with the drive or vibration and is different from the scattered rattling sounds inside the car. It is easy to distinguish. Once identified, take the car to a repair shop, lift it on a rack, and rotate the tires to locate the problem.
The vibration noise inside the car while driving is really unbearable. I suspect it might be due to unbalanced or damaged tires, especially if wheel balancing wasn't performed after installing new tires, as uneven wheel rotation can cause body vibrations. Suspension system issues, such as aging or leaking shock absorbers, become more noticeable on bumpy roads. Loose engine or transmission mounts can increase vibrations at idle. Loose interior components, like the dashboard or door panels, may produce buzzing sounds when vibrating. Alternatively, brake system failures, such as unevenly worn brake pads, can also cause noise. I recommend first checking tire pressure and tread wear, then taking a short drive to listen for changes in the noise. If the vibration increases with speed, promptly visit a professional shop for wheel balancing. Suspension or engine issues require professional diagnosis—don't delay to avoid vehicle damage and safety risks. Long-term neglect may lead to component failure and higher repair costs. During regular maintenance, have technicians test the suspension to effectively prevent such issues.
