What is the reason for the sudden flameout of the car while driving?

1, the flameout caused by carbon deposition, especially at the electronic throttle, is an air intake fault. When the carbon deposit at the throttle is very large, it may turn off when the throttle is released during driving, which happens from time to time in some very old cars.

Because the throttle is loosened, there is only a small gap at the throttle to let the air pass. When there is too much carbon deposited in the gap, the amount of air passing through it is greatly reduced, which is not enough to maintain the mixture required for idling operation, it will turn off. However, this can be avoided. You can feel it when you light the fire. It's not easy to strike a fire, and you even need to step on the gas pedal to hit it. This is a sign of excessive carbon deposition in the throttle, which needs to be cleaned in time.

2, oil supply failure, generally the gasoline pump is damaged, unable to pump oil. The service life of gasoline pump is long, so the damage usually occurs on old cars. Some cars break down when they are parked, which makes them fail to catch fire, while others break down when they are driving. Power failure, usually the ignition coil is damaged, resulting in no high voltage in all spark plugs.

3, electronic components failure, such as engine computer. All operations in the car must go through the engine computer. After it broke down, there was no signal and no command, so many other components didn't know how to work, so they didn't work, leading to flameout.

Extended data:

The flameout is a common problem for beginners to drive. I believe that many people have encountered such a situation, starting the flameout when the red light turns green, starting the flameout when following the car, not shifting gears in time, stalling when the braking range is too large, and stalling when the steering angle is too large.

Although there are various situations of flameout, it is mainly caused by improper matching of clutch, accelerator, brake and gear, which requires novices to be familiar with the vehicle they are driving as soon as possible, master the weight of accelerator pedal and the length of clutch free stroke, and make adjustments if the pedal position is not suitable.

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