Why does my Buick want to flood itself. Had a new fuel pump about three years ago

What is your question?

Try’s to flood occasionally on starting can get it to start after I push the accelerator to the floor

What makes this problem better or worse?

Why does my Buick want to flood itself. I have no codes or lights and it had a new fuel pump put in about three years ago

How long has your 2003 Buick Park Avenue had this problem?

Off and on for the last two months