Why does the car shake when running?

[DeAlexis]

Here are the reasons why the car shakes when running: 1. Excessive carbon deposits on the fuel injector and throttle body. During cold starts, the carbon deposits inside the engine absorb some gasoline, causing the combustible mixture to become too lean, leading to difficulty starting or engine shaking; 2. Faults caused by car tires. It is necessary to check the tire pressure, tire wear, shock absorbers, and other components; 3. Shaking caused by abnormalities in the car's fuel supply system and ignition system. It is necessary to check whether the intake pressure sensor, fuel supply pressure, spark plug firing, etc. are normal; 4. Problems with the car's body components. It is necessary to check whether the engine mounts, rubber ball joint covers, and components fixing the engine are loose or aged and damaged.