Look in the trunk near the back seat. unfold the carpet. you will see a access panel for fuel pump. You do not have to remove the gas tank on a 1998 arcura. Unhook the neg, side of the battery post. Unplug elect,to gas tank.The gas lines must be removed next they have a line lock that you depress to remove.Then unscrew the phillps head screws anound fule pump plate, and remove it. Good luck.