Inertia Fuel Shutoff (Ifs) Switch
WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2000 Mercury Sable, 2000 Mercury Mystique, 2000 Mercury Grand Marquis, 2000 Mercury Cougar, and 2000 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
DO NOT reset IFS switch until fuel system has been inspected for leaks and repaired if necessary.
- If IFS switch is tripped, engine cannot be restarted until switch is manually reset. To reset IFS switch, depress switch button. For IFS switch location, see INERTIA FUEL SHUTOFF (IFS) SWITCH LOCATION table.
- To test IFS switch, turn ignition off. Remove IFS switch. Shake IFS switch to force it into tripped position (switch open). Check continuity between appropriate IFS switch terminals. See WIRING DIAGRAMS article. Continuity should not exist. Reset switch and ensure continuity exists between appropriate terminals.
INERTIA FUEL SHUTOFF (IFS) SWITCH LOCATION
| Application | Location | |
|---|---|---|
| Continental | Left Fender Apron Near Air Suspension Switch | |
| Contour, Cougar, Escort, Focus, LS & Mystique | Bottom Of Left "A" Pillar | |
| Crown Victoria, Grand Marquis & Town Car | In Trunk Behind Left Luggage Compartment Lining | |
| Mustang | Lower Left Rear Of Trunk | |
| Sable & Taurus | Behind Right Rear Luggage Compartment Lining | |