2004 Chevy Impala pulsing brakes

In the industry, we like to verify where the pulsation is occuring. If the pulsating is felt in the pedal, most likely the front. In the seat, or feels like trailer hitching? Likely the back. If the pedal is soft, make sure you bled the lines correctly. Still pulsating? Shake down the front end. First side to side then up and down. If the first has play, replace tie rod ends and align. Up and down? Replace wheel bearing, im pretty sure the imapla this year has a hub unit and no pressing is required, be careful of the abs wire though and remeber where it goes