Depends on the year which you fail to list.
On top of gas tank.
Approx. 17.5 gal
Fuel pump is located inside the gas tank, you need to remove the fuel tank from the car in order to have access to the fuel pump.
My Chilton's Auto Repair Manual shows : For a 1991 Buick Century : ( 15.7 U.S. gallon gas tank )
inthe gas tank john
you have to go in and drop the gas tank... it is on the top
Car not getting gas Buick century 1994?
remove gas tank and replace fuel pump
Charcoal canister is underneath your engine next to the gas tank. Cant miss it.
More than 15. i think it's 15.7.
What size gas fuel tank does a 2001 Buick lasabre have
how to replace the tether gas cap on a 1998 Buick Century?
It is located on the frame on the driver's side just forward of the gas tank.
The gas tank on the 2010 Buick LaCrosse holds 18.4 gal..
The gas tank on the 2010 Buick Enclave holds 22.0 gal..
The gas tank on the 2014 Buick Regal holds 18.0 gal..
The gas tank on the 2004 Buick Regal holds 17 gal..