Never wash the throttle, okay? Why don't you suggest washing the throttle?

Generally speaking, when you go to the 4S repair shop, the staff will say that you need to clean the throttle. However, some people say, never wash the throttle. In fact, it is recommended that the throttle should not be cleaned frequently. If the cleaning is too frequent or the cleaning solution is not used properly, the dust-proof and antistatic coating on the throttle surface will be lost, which will make the throttle dirtier. The throttle needs to be cleaned, because the car will get dirty after being used for a long time, and a layer of sludge and dirt will be attached to itself and the inner wall of the nearby airway, which is called carbon deposition. If the throttle valve is dirty and not cleaned, it will affect the intake of the engine, leading to engine idling jitter and flameout. Moreover, the acceleration of the car will not be smooth and the fuel consumption will increase. There are many reasons for carbon deposition in throttle valve, but the main reason is the condensation and accumulation of oil vapor caused by long-term reverse diffusion of crankshaft ventilation pipe, or the exhaust gas and mixed gas discharged from cylinder, and of course some dust impurities may leak from air filter. If the car has slow acceleration response, unstable idle speed and jitter, it means that the throttle valve is dirty and needs cleaning. Under normal circumstances, the throttle valve is cleaned once after driving for about 20,000-30,000 kilometers. It can be cleaned with a special foam cleaner or by removing the throttle valve. The 4S shops or repair shops usually use the method of "hanging bottles" for cleaning-it takes a long time to continuously spray cleaning liquid to the air inlet when the engine is running, but the operation is relatively simple, and the air inlet can be cleaned by the way.