Hello, I'm Danny.
It sounds like you are having an issue with the ignition coil for cylinder number two. I've attached the the replacement picture steps below for the ignition coil on your Impala. I've included a picture of cylinder number two coil location and circled in red. I've also included a picture of the part available at all AutoZone auto parts locations. Hope this helps and thanks for using 2CarPros.
Images (Click to enlarge)
Friday, January 29th, 2021 AT 11:10 PM