On a 2001 Mercury Mountaineer :
Underneath the Mountaineer , below the drivers door , mounted on the frame
rail
On a 2001 Mercury Mountaineer : The fuel filter is under the vehicle , below the drivers door , mounted on the frame rail
It has a vacuum leak somewhere.
take it off
The electric fuel pump is inside the fuel tank
The fuel pump is located inside the fuel tank.
On a 1997 Mercury Mountaineer : I assume the fuel filter would be in the same location as a 1997 Ford Explorer : ( underneath the Mountaineer , below the drivers door , mounted on the frame rail )
Its inside the gas tank. connected to the bottom of the fuel pump.
According to the 2001 Mercury Mountaineer owners manual : The fuel pump shut off switch ( inertia switch ) is in the front passenger footwell , by the kick panel
There are several things that can cause your 2000 Mercury Mountaineer from running. The most common cause is a lack of fuel. You might want to start by changing your fuel filter.
below the drivers door , mounted on the frame rail for the body
The filter is located behind the RH side of the carbon canister under the hood.
On a 2004 Mercury Mountaineer : The ELECTRIC fuel pump is INSIDE the gas tank