you will need a fuel pressure and flow gauge and then check actual meaured to specs.
In the fuel tank
A 2000 Lesabre is not designed for E85. While the car might operate on E85 the fuel system is not built for it.
The fuel pump is inside the fuel tank.
You have to drop the gas tank to get to it
What size gas fuel tank does a 2001 Buick lasabre have
In the fuel tank. Need to drop it down and remove from the top.
18 Gallons About $54.00 or 18 gallons
lay under the car and sweat a lot.
An OEM tank for the '89 La Sabre has a capacity of 18 gallons according to one internet retailer.
The fuel pump is in the fuel tank.
If its fuel injected then It should b located in the gas tank.
in the trunk on the drivers side under the carpet