What Causes the Car to Shake When Accelerating Hard?

[StRosalie]

Car shaking when accelerating hard is caused by: poor combustion, which may be due to low fuel pressure, poor ignition leading to incomplete combustion, or insufficient cylinder pressure resulting in lack of power. The solution is to clean the throttle body and regularly inspect the spark plugs, replacing them when necessary. It is recommended to clean the throttle body every 20,000 to 40,000 kilometers. If the driving environment is harsh, the cleaning interval should be shortened. However, the throttle body should not be over-cleaned, as excessive cleaning can lead to premature failure. Frequent cleaning can gradually remove the special coating inside the throttle body chamber. Without this coating, the chamber becomes more prone to oil buildup, creating a vicious cycle that ultimately leads to failure.