Under dash drivers side it's like two by one and a half inches
location for fuse, and relay switch on a Mercury Sable
Under the hood in the fuse/relay center.
In the relay block with the other relays.
The relay is in the fuse/relay box under the hood it is relay number 29
On a 2003 Mercury Sable : In the Power Distribution Box ( which is " live " ) located in the front of the engine compartment by the battery ( # 30 is the fuel pump relay ) Also , # 16 is a 20 amp mini fuse for the fuel pump relay
where is the fuel reset for 1999 mercury sable
I was looking at one of the Ford websites and it shows for a 1994 Mercury Sable ( Motorcraft FG-800-A engine fuel filter , all engines , without flex fuel )
The fuel relay switch is located in the trunk on the left side. There is a hole and a red button behind it.
I have a 1987 mercury sable the fuel relay in combined with other relays mounted on top of the radiator. If you look in your car manual under engine control diagram find the fuel pump relay wire color code, match it to the wire coming out of the relay mounted on top of the radiator its probably there.
The relay/fuse box is on the drivers side inner fender under the hood.
Answer"Relay switch" is rather ambiguous...Fuel pump electrical relay / circuit protectionEmergency fuel shutoff / inertia switchBoth are covered in the "Related Questions" below...
In the trunk on the passenger side under the trim/carpet.