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Gasoline Engines

WARNING: This page does not describe the selected car, but rather 20 other vehicles, including the 2003 Mercury Mountaineer, 2003 Lincoln Navigator, 2003 Lincoln Blackwood, 2003 Lincoln Aviator, and 2003 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel cap to release fuel tank pressure. Remove relief valve service port cap. Relief valve service port is located on fuel supply manifold. Using Fuel Pressure Gauge (T80L-9974-B), release fuel pressure from Schrader valve.
  2. If fuel pressure gauge is not available, disconnect electrical connector to Inertia Fuel Shutoff (IFS) switch. For IFS switch location, see INERTIA FUEL SHUTOFF SWITCH LOCATIONS  table. Crank engine with IFS disconnected for 15 seconds to reduce system pressure.
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