fuel pump relay is located on the left side trunk and it is a small panel up towards the trunk.
On a 1999 Mercury Cougar : The fuel pump relay is in the Power Distribution Box ( which is " live " ) located in the engine compartment ( it is relay R1 and is one of the black relays )
In the relay box with all the other relays.
For a 1999 Mercury Cougar : In the Power Distribution Box ( which is " live " ) located in the engine compartment ( on the drivers side of the engine compartment ) ( relay R1 is the fuel pump relay )
Your 1991 Mercury fuel pump relay switch is located on the firewall of the engine compartment. The relay switch will be near the center of the firewall.
relay R1 is for the fuel pump on a 1999 Mercury Cougar
On a 2001 Mercury Cougar : In the Power Distribution Box ( which is " live " ) located in the engine compartment ( Relay " R 1 " is the fuel pump relay )
In the fuel tank
Inside the fuel tank
Try looking on the drivers side in the trunk under the mat/carpet along the side.
relays just plug in to the fusebox
it in your gas tank if its fuel injected
inside of the tank