Why does the Camry shake severely when the air conditioner is turned on?

[LeJoel]

The reasons for severe shaking when the Camry's air conditioner is turned on are as follows: 1. Severe engine carbon buildup: The most common cause of shaking is a dirty throttle body or excessive carbon buildup in the fuel injectors. When there is too much carbon buildup inside the engine, the gasoline sprayed by the cold start injector is largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and making it difficult to start. The solution is to clean the fuel system and check if the idle control valve has carbon buildup, which should be cleaned thoroughly. 2. Unstable fuel pressure: Check whether the fuel supply pressure and the intake pressure sensor are functioning properly. If the fuel pump's supply pressure is abnormal or the intake pressure sensor's values are incorrect or malfunctioning, it can cause the car to shake. The solution is to check the fuel pressure and replace components if necessary. 3. Aging engine components: Car shaking can also be related to worn engine mounts. Engine mounts are essentially the engine's vibration damping system, responsible for absorbing minor vibrations when the engine is running.