What is the reason for shaking during acceleration but not when releasing the throttle?

[McAlessandra]

The reason for shaking during acceleration but not when releasing the throttle is: During rapid acceleration, due to a certain angle between the half-shaft axial direction and the inner CV joint axial direction, the force point continuously changes along the axial direction during the rotation of the CV joint. The force generated by this change pushes the vehicle body alternately to the left and right, resulting in the shaking phenomenon. The hazards of car shaking during acceleration include: 1. Damaging the car's spark plugs, causing poor ignition; 2. Increasing carbon buildup on the fuel injectors; 3. Leading to clogging of the throttle and intake passages; 4. Accelerating the aging process of engine components; 5. Damaging the clutch pressure plate; 6. Increasing the load on the engine.