The fuel pump relay on a 1993 Buick Roadmaster Wagon is typically located in the fuse box under the hood, near the driver's side of the engine compartment. It's usually marked on the fuse box cover for easy identification. If you're having trouble locating it, refer to the vehicle's service manual for a diagram and further details.
Remove the fuel tank to gain access to it.
To test the fuel pump relay on a 1991 Buick Roadmaster, first locate the relay in the fuse box under the dashboard or in the engine compartment. Use a multimeter to check for continuity by disconnecting the relay and testing the terminals; there should be continuity between the terminals when the relay is energized. Alternatively, you can swap it with a similar relay in the fuse box to see if the fuel pump operates. If the relay is faulty, it should be replaced.
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
I am having the same problem. I can't seem to find the fuse. The relay is located under the hood at the top left when you are facing the motor. On a 94 the fuse is in the same fuse box. The top of the fuse box labels the fuses
Fuel Pressure Regulator is located on the fuel rail.
No, GM vehicles do not use inertia/reset switches.
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.