Fuel System Pressure Release - Gasoline Engines
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.
WARNING:
Before working on or disconnecting any of the fuel tubes or fuel system components, relieve the fuel system pressure to prevent accidental spraying of fuel. Fuel in the fuel system remains under high pressure, even when the engine is not running. Failure to follow this instruction may result in serious personal injury.
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to JACKING & LIFTING .
- Disconnect the Fuel Pump Control Module (FPCM) electrical connector.
- Start the engine and allow it to idle until it stalls.
- After the engine stalls, crank the engine for approximately 5 seconds to make sure the fuel rail pressure has been released.
- Turn the ignition switch to the OFF position.
- When fuel system service is complete, reconnect the FPCM electrical connector.
- Cycle the ignition key and wait 3 seconds to pressurize the fuel system. Check for leaks before starting the engine.
- Start the vehicle and check the fuel system for leaks.
NOTE:
Pickup and Chassis Cab with midship fuel tank shown in illustration. Chassis Cab with aft of axle fuel tank is similar, with the Fuel Pump Control Module (FPCM) located on the Evaporative Emission (EVAP) canister assembly bracket.
NOTE:
It may take more than one key cycle to pressurize the fuel system.