I occasionally find the car depressed while driving. What's the matter?

It's because your air filter hasn't been blown for a long time and it's blocked.

If the air filter is not cleaned for a long time, the air entering the combustion chamber will contain a lot of dust. Dust easily sticks to the fuel that fogs at the throttle. For example, the small hole of idle motor, throttle plate and so on.

Other reasons:

1, the damage of solenoid valve is an important reason for frustration. Frustration is like being kicked in the back of the ass. Frustration can be divided into occasional and fixed periods. The difference is simple. Accidental means irregular, fixed means reaching a certain speed or changing a certain gear (second gear into third gear) and a fixed speed appears.

2. The reason for the car's setback is that there is sludge in the gearbox oil circulating in the gearbox to block the oil path in the valve body, which will lead to a series of gearbox problems such as high temperature, impact and slippage of the gearbox for a long time.