subaru impreza 2008 model 2.0 non turbo with automatic gearbox problem

[alaraishy]

Hi i am new here and i have problem since long time but i don't know what is the solution , i have subaru impreza 2008 model 2.0 non turbo with automatic gearbox and i feel Cut up when i press the accelerator pedal, especially when accelerator pedal fully pressed and the speed is high then i remove my leg from accelerator and the car slowdown then when i press the accelerator again I feel that stopped for a moment and then in response to the take off again, I also note that when you press the brake pedal felt vibration in the transmission, such as what happens when you change the transmission speed in front