Where Could the Problem of Car Resonance Be?
2 Answers
Car resonance can be caused by aging rubber in engine mounts, engine misfire, or deformation/improper installation of the engine guard plate. Below are detailed explanations: Aging Rubber in Engine Mounts: If the car has been used for a long time, the high-temperature fatigue aging of the rubber in engine mounts can easily cause resonance, and in severe cases, there may even be bumping and friction noises. Engine Misfire: Engine misfire can also cause resonance in the engine. Deformation or Improper Installation of the Engine Guard Plate: Resonance caused by deformation or improper installation of the engine guard plate is relatively common and easy to resolve.
Speaking of car resonance, I have personal experience with it. When I was driving on the highway at speeds over 80 km/h, I felt the steering wheel buzzing and vibrating. Later, I found out it was a tire balancing issue—a balancing weight on the front wheel had fallen off. In fact, common causes of resonance fall into a few categories: First, issues with the tires and wheels, such as failed wheel balancing, deformed rims, or tire bulges. Second, problems with the drivetrain, especially wear on the universal joints of the driveshaft in rear-wheel-drive cars. Third, broken or misaligned exhaust pipe hangers, which can cause resonance at certain engine RPM ranges. Fourth, aging chassis components, like cracked lower control arm bushings or warped brake rotors. Additionally, don’t overlook the engine mounts—if the rubber hardens due to aging, vibrations can transfer directly to the frame, causing resonance. It’s recommended to note the speed and road conditions when resonance occurs to make it easier to diagnose the issue during inspection.
