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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMERCURY2000MYSTIQUE GS, 2.0 3, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEREMOVE, OVERHAUL & INSTALLENGINE CONTROLS - REMOVE/INSTALL/OVERHAULFUEL SYSTEMFUEL SYSTEM PRESSURE RELEASE
2000 Mercury Mystique GS, 2.0 3, Automatic
Fuel System Pressure Release
2000 Mercury Mystique GS, 2.0 3, AutomaticSECTION Fuel System Pressure Release
WARNING:
Always relieve fuel pressure before disconnecting any fuel injection related component. DO NOT allow fuel to contact engine or electrical components.
- Remove fuel filler cap to release fuel tank pressure. Remove relief valve (Schrader valve) cap. Relief valve is located on fuel supply manifold. Using Fuel Pressure Gauge (T80L-9974-B), release fuel pressure from relief valve.
- If fuel pressure gauge is not available, disconnect electrical connector to Inertia Fuel Shutoff (IFS) switch. For IFS switch location, see IFS SWITCH LOCATION table. Crank engine for 15 seconds to reduce system pressure. Turn ignition switch to OFF position. Reconnect IFS switch connector.
IFS SWITCH LOCATION
| Application | Location | |
|---|---|---|
| Continental | Left Fender Apron Near Air Suspension Switch | |
| Contour, Cougar, Escort, LS & Mystique | Bottom Of Left "A" Pillar | |
| Focus | Bottom Of Right "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 | |
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.