Usually in the cargo area on the passenger side behind the carpet.
Most ford inertia switches are resettable and should not need to be replaced.
The function of an inertia switch is bacically to "stop" the electric fuel pump from causing an explosion in a possible crash involving fuel tank rupture.
On a 1999 Ford Escort : The fuel pump shut off switch ( inertia switch ) is in the passenger side of the trunk behind the trunk liner . There is an access hole
The fuel pump inertia switch for a 1997 Ford Escort is located inside the trunk immediately below the hole in the trunk side trim. (according to the owner's manual)
According to the 1996 Ford Escort Owner Guide : The fuel pump shut off switch ( inertia switch ) is in the trunk , it is behind the trim on the passenger side , there is a plug to remove to gain access to the switch
You can reset one by pushing the button down. The inertia switch is located behind the left kick panel on the drivers side.
Ford vehicles have this switch, no GM vehicle use an inertia switch.
The 2002 Ford Escort owners manual shows : either on the right side of the trunk , behind the trunk liner or in the drivers footwell , behind the kick panel depending on application
In a 1997 Ford Escort sedan : The fuel pump shut off switch / inertia switch ( with the reset button on top ) Is located directly under the hole in the passenger side trunk trim * it is near the back seat
On the Ford Escort it's either in the drivers footwell , behind the kick panel or on the right side of the trunk , behind the trunk liner
On a 1997 Ford Escort : Yes , the fuel pump shut off switch ( inertia switch ) is located in the trunk , on the passenger side of the trunk , near the passenger rear seat , under the trunk trim ( there is an access hole so you can push the reset button down )
It is inside the trunk. On the passenger side of the trunk the carpet is cut out in a circular shape. There is an inertia switch. Push down on the top botton to reset it.