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Mounted on top and inside the fuel tank. You must remove the fuel tank to replace the pump.
inside fuel tank,you can remove rear seat to access it
In a ( 1996 ) Mercury Mystique the fuel pump shut off switch ( inertia switch ) is in the drivers footwell behind the kick panel by your left foot . There is an access hole through the panel
in the gas tank. remove the gas tank and then remove the fuel pump from gas tank. replace with new fuel pump.
Yes , the ELECTRIC fuel pump is inside the gas tank on a 1999 Mercury Mystique
If it is the same as the ( 1996 ) model year of Mercury Mystique , the fuel pump shut off switch ( inertia switch ) is in the drivers footwell , behind the kick panel ( there is an access hole ) * near the inside hood release
I believe it is about 45 psi, not 100% sure though.
In the drivers footwell behind the kick panel by your left foot ( there is an access hole )
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In the fuel tank
The fuel pump fuse for a 1998 Mercury Mystique is located in the main fuse panel near the hood release. It prevents the fuel circuit from being overloading and damaging the pump.
In the drivers footwell behind the kick panel ( there is an access hole in the panel ) according to the 1999 Mercury Mystique Owner Guide