What is the problem with car idling vibration?

[LeThomas]

The causes of car idling vibration include the vehicle being equipped with a three-cylinder engine, clogged fuel injectors, excessive engine carbon deposits, or a dirty fuel filter. Here is the relevant information: 1. Usually, car idling vibration and instability are manifested in the idling condition, where the tachometer needle fluctuates up and down and is very unstable. Generally, the idling speed has a certain range, around 1000rpm to 1500rpm. If the idling speed is too high or too low, it will lead to increased fuel consumption, while idling vibration can easily cause the engine to stall automatically. 2. The fuel injector of an electronically fuel-injected car is a key component for fuel injection, and its service life is very long, reaching hundreds of thousands of kilometers. However, due to the colloid in gasoline, the fuel injection holes of the injector can become clogged, causing inconsistent fuel injection from each injector, resulting in inconsistent operation of each cylinder and causing engine vibration. The solution is to remove and clean them.