Why Does the Car Shake Violently After Starting?

[AaliyahAnn]

Severe shaking after starting the car may be caused by excessive carbon deposits, insufficient cylinder pressure, and other reasons. Here is an analysis of the possible causes related to car shaking: 1. Excessive Carbon Deposits: Excessive carbon deposits can lead to low fuel pressure, resulting in insufficient fuel supply and lack of power. It is recommended to clean the fuel injectors and check the fuel pressure. Additionally, poor ignition may cause incomplete combustion and noticeably higher fuel consumption, which can be resolved by replacing the spark plugs. 2. Insufficient Cylinder Pressure: This commonly manifests as misfiring and shaking, along with a lack of power. It is necessary to test the cylinder pressure. Finally, visually inspect whether the balancing weights on the rims are missing or if the wheel hubs are noticeably deformed.