What Causes Car Shaking and Lack of Power During Acceleration?

[StellaMarie]

Car idling shaking and lack of power during acceleration are generally caused by excessive carbon buildup in the throttle body, leading to restricted air intake. As carbon deposits accumulate, fuel passages become blocked, engine performance declines, fuel consumption increases, and a series of complications may follow. In China, gasoline is derived from heavy oil with high sulfur and acid content, containing elevated levels of sulfur, carbon, manganese, and trace metals. High-impurity gasoline, after combustion, adheres to various combustion components, forming carbon deposits on piston surfaces and combustion chamber walls. There are two main methods for carbon deposit removal: 1. Manual cleaning of internal carbon deposits. 2. Using gasoline additives to improve combustion and clean carbon deposits. Comparatively, manual cleaning requires engine disassembly, which is complex and costly, and may also harm the engine. Fuel additives, on the other hand, are simpler, more convenient, and relatively cheaper, providing thorough cleaning.