Fuel System Pressure Release
WARNING: This page is about a different car, the 2002 Mercury Grand Marquis, 2002 Lincoln Town Car, and 2002 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Fuel in the fuel system remains under high pressure even when the engine is not running. Before servicing or disconnecting any of the fuel system components, the fuel system pressure must be relieved to prevent accidental spraying of fuel causing personal injury or a fire hazard.
NOTE:
On some vehicles, the fuel supply manifold Schrader valve may have been eliminated. If vehicle does not have a Schrader valve, the fuel system pressure release procedure has been revised. See TSB Ford 02-23-3, dated 11/23/2002 for revised procedure.
- 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 Inertia Fuel Shutoff (IFS) switch harness connector, located in trunk behind left luggage compartment lining. Crank engine for 15 seconds to reduce system pressure. Turn ignition switch to OFF position. Reconnect IFS switch harness connector.