What should Buick engine shake do in the new century?

As for your inquiry, I can only help you analyze the reasons for this phenomenon, because I haven't seen the current car yet. The main fault reason is the increase of carbon deposition in throttle, air intake, air intake valve and combustion chamber. When the car is cold, it will adsorb some gasoline, which will lead to the mixture being too thin when the engine is idling, which will lead to the unstable idling of the car. So you should check whether there is too much carbon and dirt in the air intake and intake valve. If there is too much carbon deposit and dirt, the cross-sectional area of the air passage will change, which will make the control unit unable to accurately control the idle intake, resulting in too rich or too lean mixture, which will lead to abnormal combustion or engine jitter or even failure to start after starting. At the same time, check whether the spark plug, ignition coil and cylinder line are out of cylinder, and remind the carbon canister whether there is a fault. Driving a car should also be related to these problems.

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