What Causes the Jerking Sensation When Accelerating from 60 to 80 km/h?

[JamesonDella]

Specific reasons for the jerking sensation when accelerating from 60 to 80 km/h: Engine oil passage blockage: The engine's power output is determined by the combined performance of ignition, air intake, and fuel injection. If the air intake volume decreases, ignition weakens, or fuel injection reduces, the engine will lack sufficient power, resulting in a jerking sensation. Dirty transmission fluid: This can damage the solenoid valves. When sludge accumulates in the transmission fluid and circulates through the system, it may block oil passages in the valve body, causing jerking. Prolonged exposure to this condition can lead to transmission overheating, impact, slippage, and other transmission-related issues. Break-in period: A slight jerking sensation during driving is normal during the break-in period because the vehicle's power output and component engagement are not yet at their optimal levels. Additionally, the transmission control module has a self-learning mechanism that continuously adjusts oil pressure for smoother gear shifts.