What is the reason for abnormal noise and lack of acceleration when accelerating in SWM X7?

[JuliannaLee]

The reasons for abnormal noise and lack of acceleration when accelerating include wear or impurities inside the fuel pump motor; damaged throttle body or excessive carbon and sludge buildup; poor lubrication of the accelerator pedal bearing; or damaged clutch release bearing, resulting in incomplete clutch disc separation. Solutions for abnormal noise when pressing the accelerator: Replace the fuel pump; clean the throttle body and replace the motor after disassembly; apply grease to lubricate the bearing; remove the clutch and replace the release bearing. The working principle of the accelerator is: When the accelerator pedal is pressed, it directly controls the throttle body. The throttle opening increases, allowing more air to enter the engine. At this point, the ECU commands the fuel injection system to inject more fuel, causing the engine speed to rise and the vehicle to accelerate.