Is the 4S shop asking you to wash the accelerator all day to make money?

Is the 4S shop asking you to wash the accelerator all day to make money? Yes, the most common defect of the air valve is that it is polluted by carbon or dust, and the vehicle performance is abnormal. Clean air valve is a common maintenance operation for automobile maintenance personnel. Human words: the cleaning accelerator is not a maintenance element, but a maintenance element.

If the 4S shop always advises you to do this during maintenance, it is usually to generate income and make money. This can also be seen in the maintenance manual. In fact, there is no maintenance content about cleaning the throttle in the car maintenance manual. What happened to the accelerator? Whether you are familiar with cars or not, if you want to drive, you should know the common sense of stepping on the gas pedal. When you step on the accelerator, the car will be faster. If you don't step on the accelerator, the car will lose power and slow down. All these are obtained from the air valve, which is the valve that controls the air to enter the engine. Generally speaking, there are two kinds: traditional cable and electronic control. Now most vehicles are equipped with the latter. The main function of the valve is to change the opening by changing the position of the throttle, determine the air intake of the engine, and promote the formation and combustion of the mixture.

Air filter co., ltd. They say it is in direct contact with air. In fact, there is an air cleaner element in the front. The air cleaner element moves forward, but not all components can pass through. Dust or other dirt will still contact the throttle surface through the throttle. Adhesion of condensate and oil vapor The working temperature of the engine is relatively high, and the oil will produce oil vapor. At low speed and low speed, the oil vapor condenses at a lower temperature or is injected into the throttle valve together with the colloid in the fuel.

How to clean the accelerator? One is to remove the throttle valve, and technicians use special cleaning agent to clean the pollutants in the throttle valve, and then install and maintain it. This makes the cleaning effect more thorough. In addition, when the engine is running, the cleaning agent is constantly sprayed from the "hanging bottle" at the entrance of the engine. Although this kind of cleaning takes a long time and is relatively easy, the effect is not as good as thorough cleaning.