What is the cause of vehicle jitter after cleaning the throttle?

Automobile jitter can generally be divided into two categories: body jitter and engine jitter. It can be judged that the engine is shaking when igniting, and the body is shaking when shaking after running. Here's the reason for car jitter: 1. The causes of body vibration are: (1) uneven surface of brake disc leads to body vibration during braking and brake pedal bouncing. This situation is generally caused by the frequent sudden braking and heavy braking of the owner. (2) There is something wrong with the steering system. At present, most cars are hydraulic power steering, and when there is a problem with the hydraulic steering mechanism, such as the loss of power oil or mechanical failure, it will also shake. (3) There is something wrong with the running mechanism. If the wheel hub tire is not round or unbalanced, check the wheel hub tire at this time. 2. The causes of engine jitter are: (1) aging of engine foot glue. The function of engine foot glue is to buffer engine jitter. If the foot pad is aged and deformed, the engine jitter will be directly transmitted to the body. (2) Lack of cylinder and fire are the most common causes. The main problem is that the ignition coil and spark plug of the engine will shake when they are not flashing. Generally, the jitter at middle and low speeds is obvious and the acceleration is weak. At this time, check that the spark plug is correct. (3) The serious carbon deposition in the cylinder will lead to the serious blockage of the spark plug and the valve, which will lead to the problem of power weakening and continuous jitter. At this time, in-cylinder health care is almost necessary.