What Causes Vehicle Shaking During Acceleration?

[AlainaRose]

Common causes of vehicle shaking during acceleration: 1. Dirty throttle body or excessive carbon buildup in fuel injectors. When there's too much carbon deposit inside the engine, the gasoline sprayed by cold start injectors gets largely absorbed by the carbon deposits, resulting in an overly lean air-fuel mixture during cold starts and making ignition difficult. 2. Uneven pressure distribution between the driving and driven plates. Issues like uneven spring pressure in the clutch pressure plate, inconsistent adjustment of release levers, and/or uneven diaphragm spring fingers can cause asynchronous engagement timing, uneven pressure plate force distribution, or even plate tilting, leading to poor contact between driving and driven plates and resulting in clutch shudder. 3. Weakened damping springs. When the torsion damping springs in the clutch lose their elasticity, when the clutch pressure plate springs weaken, or when diaphragm springs develop cracks, all these can cause shaking during clutch engagement.