Check the power window fuses and the relay first. If all of the windows do not work then it is a power problem with the whole window system.
Vin the relay panel ,
The 1998 Mercury power window relay switch can be found below the dashboard. The relay switch will be on the drivers side of the dashboard.
under the hood check the window relay and\or fuses. Look in your manual for the number location.
In a 1999 Mercury Mountaineer : In the Power Distribution Box ( which is " live " ) located in the engine compartment , on the drivers side of the engine compartment ( relay # 5 is the fuel pump relay )
it located under the hood in the power distribution box relay number 6. ----slingshot----
The first model year of the Mercury Mountaineer was 1997
In a 2001 Mercury Mountaineer : In the Power Distribution Box ( which is " live " ) located in the engine compartment , on the drivers side of the engine compartment : ( mini fuse # 10 is a blue color 15 amp fuse for the horn relay and the horn relay is relay # 7 )
The 1997 Mercury Mountaineer power window fuse will be the number seven fuse. The number seven fuse will be in the first column, third from the bottom.
On a 1999 Mercury Mountaineer : The fuel pump relay is in the Power Distribution Box ( which is " live " ) located in the engine compartment on the drivers side You can view the 1999 Mercury Mountaineer owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( the fuses and relays section starts on page 170 )
In a 1997 Mercury Mountaineer : The fuel pump relay is in the power distribution box ( which is " live ) located in the engine compartment , on the drivers side , near the firewall It is relay # 6 ( one of the large relays , in the second row from the drivers side , and second large relay from the FRONT end of the box )
You can view the 1998 Mercury Mountaineer owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( page 142 has a diagram of the Power Distribution Box , which is " live " located in the drivers side of the engine compartment . It shows where the fuel pump relay is located in the box )