What Causes Body Vibration in a Camry at 120 km/h on the Highway?
2 Answers
Here are the specific reasons for body vibration in a Camry at 120 km/h on the highway: 1. Suspension system failure: The suspension system is mainly responsible for filtering the vibration 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 cabin, affecting driving. When the engine is idling, turning on the electrical systems inside the car can also easily cause vibrations. The engine increases its load due to the activation of electrical systems, leading to a drop in idle speed. To compensate for the vibration caused by the drop in idle speed, the engine will automatically increase the RPM. 2. Unstable oil pressure: Check whether the fuel supply pressure and the intake pressure sensor are functioning properly. If the fuel pump supply pressure is abnormal or the intake pressure sensor values are incorrect or malfunctioning, it can cause body vibration. 3. Cold start: The main reason for body vibration during a cold start is incomplete fuel combustion, resulting in insufficient power. The ignition energy is relatively low during startup, and when the temperature of the fuel and lubricant is low, more throttle is needed to meet the power demand. Over time, the electrode gap of the spark plug gradually increases, leading to a decrease in ignition energy and poor fuel atomization, which causes body vibration. Additionally, aging ignition coils, aging high-voltage wires of the spark plugs, or leakage can also reduce ignition energy.
My Camry has been running for a few years, and it's quite common for the body to shake when driving at 120 km/h on the highway—that time it really scared me. It might be an issue with tire balancing, uneven tire wear, or low tire pressure, where excessive centrifugal force at high speeds causes the shaking. If the shock absorbers in the suspension system are worn out or the control arms are loose, they can also make the body sway noticeably. If not addressed in time, the shaking can worsen, affecting steering stability and even damaging the driveshaft. Remember to have the tire balance and suspension components checked at a repair shop. Regularly checking and maintaining proper tire pressure can prevent a lot of trouble.
