Symptoms of Chery a3' s broken throttle.

The main symptoms of throttle rupture are: the engine idle speed is unstable, the high idle speed continues to drop, and the engine is difficult to start, especially the cold start; Unstable idle speed or no idle speed; The engine is difficult to start; Insufficient power, poor acceleration performance and unstable operation; The exhaust pipe of the car emits black smoke, which increases fuel consumption.

Throttle is a controllable valve, which is used to control air to enter the engine. After entering the intake pipe, it is mixed with gasoline (different models of cars have different design mixing parts) to become combustible mixture, which participates in combustion and does work.

So how do you determine that the throttle is broken? The most accurate method is to check the throttle with a scan tool and observe the data flow. If the throttle opening is large, it must be cleaned. If it is determined that the fault of the throttle valve is permanent, it must be replaced. Generally, the throttle cannot be disassembled for maintenance, only the assembly can be replaced.

It is worth mentioning that proper and standardized throttle cleaning can ensure the normal operation of the engine, but the cleaning must be controlled. Excessive cleaning will lead to premature scrapping of the throttle, and frequent cleaning will lead to the special coating in the throttle cavity being washed away gradually. If the inner cavity loses its coating, it is more likely to cause greasy adhesion and form a vicious circle, and the final result is scrapping.