1. The most obvious is the power of the engine. When the idle speed of the vehicle is unstable, it is difficult to start, and the power drops, it indicates that the vehicle throttle may need cleaning.
2. Generally speaking, the 4S store will recommend the car owner to clean the throttle valve regularly, usually every 20000 to 40000 km. However, it should be noted that it is not good to check and clean the throttle valve. Excessive cleaning will lead to premature scrapping of the throttle valve. The special coating on the inner cavity of the throttle valve after frequent cleaning will be gradually cleaned away, and the inner cavity will lose its coating, It is more likely to cause greasy adhesion, so it becomes a vicious circle, and the final result is scrapping.
