The pump on a Mark VIII is located on the passenger side in front of the front wheel very near the front bumper cover. To access it, you have to remove the right front wheel, the wheel well liner, and the silencer. Then it helps to be patient and have a set of metric sockets and extensions.
The air pump (compressor) is located on the driver side fender underneath the air filter box. Once you remove the air filter box, you will have to remove the compressor bolts from inside the wheel well.
Should be under the air filter box.
In the trunk
The pump is in a compartment below the air filter. I have heard that the pump usually goes out because the air bags or lines are leaking.
On my 93 it's on the front passenger side under the wheel well.towards the front of car.
the air suspension stopped working on my 1994 lincoln
The air conditioning compressor is on the right side of the engine on the bottom.
the air suspension sensors for each air shocks are located on the top of each air strut, two in the trunk and the other two under the hood.
In the fuse box, located on the passenger side of the car under the hood. should be a 30amp fuse. Also there is the square black fuse (next to the small fuses) that controls the air suspension also.
If this vehicle is like the 92' then the switch is located in the trunk, drivers side, there should be a hole already cut out for it, just turn it off.
Passenger side wheel well. You have to take the wheel off, wheel well shroud, and to the right you will see the compressor.
Yes the pump is electric.