What Causes Jerking During Vehicle Operation?

[Roy]

Below are the reasons for jerking during vehicle operation: 1. The air filter has not been cleaned for a long time, leading to blockage. If the air filter is not cleaned regularly, a large amount of dust can enter the combustion chamber. This dust can easily adhere to various parts, such as the idle speed motor's small holes and the throttle valve plate, when mixed with atomized fuel. 2. A damaged solenoid valve is a major cause of jerking. The sensation of jerking is akin to being kicked from behind. Jerking can be categorized as occasional or occurring at fixed intervals. The distinction is simple: occasional jerking happens without any pattern, while fixed jerking occurs at specific RPMs, during certain gear shifts (e.g., shifting from 2nd to 3rd gear), or at fixed speeds. 3. Another cause of jerking is the presence of sludge in the transmission fluid, which can circulate and block the oil passages in the valve body. Over time, this can lead to a series of transmission issues, including overheating, impact, and slippage.