Under the engine you must take off the cylinders to reach it there is no other way except for the auto shop.
Location of fuel pump relay 1996 Buick Lesabre
fuel pump relay location in 1994 buick lesabre
Fuel pumps on buick lesabre
The fuel pump relay on a 1996 Buick LeSabre can be found underneath the hood. The fuse will be in the fuse box.
In the fuel tank
The fuel pump relay is located under the rear seat on the drivers side and is a small relay #39.
It is with all of the relays in the center of the firewall under the hood.
fuel pump relay for you car, is located in the engine compartment fue box
how do you replace the fuel pump on a 1997 buick lesabre
fuel gauge sender and pump are in the gas tank (which must be removed).
The 2001 Buick LeSabre's fuel tank holds 18.5 gallons as found on http://consumerguideauto.howstuffworks.com/2001-buick-lesabre-3.htm
fuel filter location in 1990 buck lesabre