do i have to do the tank to change fuel pump on 1992 buick regal

What is your question?

I have a 1992 buick regal sometimes it will run great for a little while then shut off suddenly. other days it will not run long enough to leave the driveway everyone says its the fuel pump, how do I change it

What makes this problem better or worse?

wont stay running

How long has your 1992 Buick Regal had this problem?

months