What Causes the Dragging Sensation When Releasing the Throttle in a Car?

[StAvery]

Releasing the throttle and experiencing a dragging sensation in the engine could be related to cleaning the fuel system. Improper operation or incorrect installation may lead to this issue, so it is recommended to have it checked promptly. Below is relevant knowledge about the dragging sensation: When releasing the throttle, the upshift mechanism may be triggered, causing the engine's RPM to drop naturally during upshifting. This RPM drop leads to a reduction in the engine's torque output, resulting in the engine's kinetic energy output being lower than the car's demand, hence the sensation of being dragged. This issue typically occurs between 1st to 2nd gear or 2nd to 3rd gear shifts, as the gear ratio differences between these gears are relatively large.