What are the general reasons for a car shaking while running?
2 Answers
The following are the specific reasons for a car shaking while running: Suspension system failure: The suspension system is mainly responsible for filtering the vibrations generated by the engine during operation. If there is a problem with the suspension, these vibrations will be directly transmitted to the steering wheel and the interior of the car, affecting driving. When the engine is idling, turning on the electrical systems inside the car can also easily cause shaking. The engine increases its load due to the activation of electrical devices, causing the idle speed to drop. To compensate for the shaking caused by the drop in idle speed, the engine will automatically increase the RPM. Unstable oil pressure: Check whether the fuel supply pressure and the intake pressure sensor are normal. If the fuel pump supply pressure is abnormal or the intake pressure sensor values are incorrect or malfunctioning, it can cause the car body to shake.
As a seasoned driver who's been on the road for years, I've encountered many vehicle vibration issues. The most common cause of such vibrations is tire-related problems. Uneven tire wear, incorrect tire pressure (either too high or too low), or deformed rims can all lead to body shaking. I recommend first checking if the tire pressure meets the standard, then manually inspecting the inner side of the tires for bulges. Another common issue is wheel imbalance—just last month, my friend's car had this problem when a balancing weight fell off, making it feel like riding a massage chair. Loose drive shafts can also cause vibrations, especially noticeable during hard acceleration. For manual transmission vehicles, worn clutches are a hidden culprit, producing rhythmic vibrations when slipping. If the shaking worsens at highway speeds, it's likely due to misaligned wheels. Ignoring these issues can lead to minor problems like uneven tire wear or major hazards like sudden blowouts. If you notice vibrations, take your car to a repair shop immediately for a thorough inspection on a lift.
