What Causes Car Shaking During Hard Acceleration?

[MacJaxson]

Car shaking during hard acceleration can be attributed to the following reasons: 1. Carbon buildup in the engine, primarily caused by incomplete combustion due to unabsorbed gasoline, leading to vehicle shaking and increased fuel consumption; 2. Worn timing gears from prolonged use without replacement, resulting in severe gear wear, loose meshing, abnormal noises, and jerking sensations; 3. Mismatch between engine oil quality and the engine's requirements. Excessively thick oil viscosity can lead to increased fuel consumption and carbon buildup. Additionally, uncleaned throttle bodies or fuel injectors over time, unspark plugs not replaced for extended periods, faulty intake manifolds, or engine misfires can all affect fuel atomization and combustion, contributing to shaking issues.