What Causes Abnormal Noises Due to Car Resonance?
2 Answers
Abnormal noises caused by car resonance can result from aging engine mounts, failed spark plugs, or loose interior components. Below are detailed explanations: Aging Engine Mounts: Engine mounts act as a buffer between the engine and the car body. If the mounts are damaged, engine vibrations can directly transfer into the cabin. Failed Spark Plugs: If spark plugs fail, the vehicle's ignition becomes unbalanced, leading to increased engine vibration and severe cabin shaking. Loose Interior Components: Poorly installed interior components are prone to producing abnormal noises. If the noise is particularly severe within a certain RPM range, it's advisable to reinstall the interior parts.
I've driven quite a few cars, and the most common cause of resonance noise is loose or damaged suspension components. For instance, once when I was driving at around 60 km/h on the highway, there was an unbearable humming sound. Later at the repair shop, we found that the shock absorbers were worn out and the rubber bushings were damaged, which amplified the vibrations. Unbalanced tires are another culprit – last time I got new tires without a dynamic balance check, and the car vibrated noticeably at 80 km/h. Loose exhaust pipe mounting bolts can also cause similar issues, especially at specific RPMs. If these problems aren't fixed promptly, the noise becomes increasingly annoying and may even affect steering safety. My advice is to note the specific speed when you hear strange noises next time, as it helps mechanics diagnose the issue. Regular inspections of the chassis and tires can save you a lot of trouble.
