What happened to Buick Excelle's idling jitter and flameout?

The causes of idling jitter and flameout of Buick Excelle may be: 1, caused by excessive carbon deposition in throttle valve, idling motor, intake valve, intake pipe and combustion chamber, spark plug and fuel nozzle;

2. Pay attention to check whether there is any leakage in the fuel injector, so that the fuel injector is still in the fuel supply state after the throttle valve is closed, which causes the mixture to be too thick when driving at low speed, which leads to unstable idle speed after the fuel is turned off, which will seriously lead to flameout;

3. Furthermore, the weak ignition system will also lead to this phenomenon;

4. When idling, the engine will shake a little. If it is obvious, it may be because the gasoline filter is blocked and dirty, the idle motor is not working well, the ignition coil is faulty, and the spark plug is not working well, which will lead to engine jitter when the car is idling. You can check according to this.

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