CT5 starts to shake, and the D gear and the R gear shake.

Engine jitter during and after starting may be the following reasons.

1. Serious carbon deposition. It may be caused by too dirty throttle and too much carbon deposition in nozzle and air inlet. In the case of cold cars, carbon deposits will adsorb some fuel, resulting in insufficient combustion. If you often drive in a congested environment, the maintenance is not thorough, which will lead to unstable idle speed and difficult start-up, most of which are caused by carbon deposits. It is recommended to clean the throttle or oil circuit. 2. Ignition system problem. Check the working conditions of spark plugs, high-voltage lines and ignition coils. Poor ignition system and poor spark plug misfire can also lead to such failures. The solution is to check whether there is too much carbon in the spark plug and replace the spark plug. 3. The oil pressure is unstable. If you clean up the engine carbon deposit, clean the throttle, change the oil pad and spark plug, etc. You still find the car body shaking at idle speed. I suggest you go to the 4S shop to check whether the oil supply pressure and intake pressure sensors are normal. If the oil supply pressure of the oil pump is abnormal, or the intake pressure sensor has an incorrect value or works poorly, it will cause the body to shake. The solution is to check the oil pressure and replace the parts if necessary. 4. Aging of engine parts. Car jitter is also related to the aging of engine feet. The engine foot is actually the damping system of the engine. The engine foot is responsible for absorbing slight vibration when the engine is running. If there is something wrong with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing idling jitter.