What Causes Abnormal Noises During Car Vibration?
2 Answers
Reasons for abnormal noises during car vibration: 1. If the noise occurs on low-speed bumpy roads, it is most likely caused by items in the storage compartments, glove box, or wires from aftermarket electronic devices hitting surfaces; 2. If the noise persists regardless of speed and increases in frequency with higher speeds, it indicates an issue with the drivetrain; 3. If you hear a rattling noise from the front of the car while idling, which changes with engine RPM, it may be a problem with the motor pulley; 4. After parking and turning off the engine, if you hear a regular hissing sound from the engine compartment, this is the sound of the fuel pump depressurizing and can usually be ignored.
As a veteran driver with decades of experience, I've encountered numerous cases of car vibrations accompanied by abnormal noises, usually caused by engine-related faults. For instance, worn piston rings or minor scratches on the cylinder walls can lead to increased unbalanced engine vibrations, accompanied by clicking-like abnormal noises. Dirty fuel systems can also be the culprit, where clogged fuel injectors cause incomplete combustion and generate noise. The most terrifying scenario is aging or broken engine mounts, which transmit vibrations throughout the entire cabin, especially noticeable at idle. I remember one time my car fell victim to this precisely because I neglected regular checks of the engine oil and filters, leading to chain slack. A simple DIY check involves popping the hood to listen for the source of the noise or checking idle stability. Vibrations plus abnormal noises are warning signs—don't take them lightly; get your car to a professional shop for inspection immediately. Long-term neglect can damage the entire engine system, doubling repair costs, and compromising driving safety is not an option. Developing a habit of regular maintenance is the way to go.
