Remove the fuel tank to gain access to it.
The Buick Roadmaster was not produced in 1986. They were made from 1991 to 1996.
located your the hood on the passenger side should be the big black fuse
inside fuel tank
No, GM vehicles do not use inertia/reset switches.
Fuel Pressure Regulator is located on the fuel rail.
A 1992 Buick does not have an inertia or fuel cut off switch.
The fuel filter on a 94 Roadmaster is located on the framerail under the car. It is an inline type and is easily replaceable.
Under the vehicle, passenger side, 2 feet in front of the rear tire, just inside the frame.
Inside the fuel tank, below the rear seat on the passenger side of the vehicle.
The fuel pump is inside the fuel tank.
drop the gas tank