Why is there a dragging sensation when releasing the accelerator?

[HenryLee]

Throttle engine dragging sensation may be related to cleaning the fuel system. Reasons for the dragging sensation when releasing the accelerator: Releasing the accelerator may trigger the upshift mechanism, causing the engine speed to naturally drop during upshifting. This drop in speed leads to a reduction in engine torque output. Moreover, being in a throttle-off state further exacerbates the insufficient engine torque, resulting in the engine's kinetic output being less than the vehicle's demand. At this point, the vehicle pulls the engine, creating a dragging sensation. Automatic transmission models experiencing dragging sensation when releasing the accelerator: This is caused by the transmission's shift logic. After releasing the accelerator, the control unit may command the transmission to downshift at low speeds, which is more common in AT transmission models. CVT and dual-clutch transmissions perform better in this regard. If the dragging sensation is severe, it is advisable to check whether the transmission fluid has deteriorated or if the solenoid valves are functioning properly. Conduct corresponding troubleshooting based on the inspection.