Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2003SABLE GS, 4D WAGON, 3.0 2, AX4SREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC DIAGNOSTIC PROCEDURESFUEL SYSTEMSINERTIA FUEL SHUTOFF SWITCH
2003 Mercury Sable GS, 4D Wagon, 3.0 2, AX4S
Inertia Fuel Shutoff Switch
2003 Mercury Sable GS, 4D Wagon, 3.0 2, AX4SSECTION Inertia Fuel Shutoff Switch
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 SWITCH LOCATIONS 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 ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Continuity should not exist. Reset switch and ensure continuity exists between appropriate terminals.
INERTIA FUEL SHUTOFF SWITCH LOCATIONS
| Application | Location |
|---|---|
| Crown Victoria, Grand Marquis, Marauder & Town Car | Left Front Side Of Luggage Compartment, Behind Lining |
| Focus | Bottom Of Right "A" Pillar |
| LS | Behind Left Kick Panel |
| Mustang | In Left Rear Of Luggage Compartment |
| Sable & Taurus | In Right Side Of Luggage Compartment, Behind Side Panel |
| Thunderbird | In Left Side Front Footwell |
| ZX2 | Bottom Of Left "A" Pillar |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.