Fuel Pressure: Testing and Inspection
FUEL SYSTEM PRESSURE TESTSpecial Tool(s)
Special Tool(s):
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.
- Do not carry personal electronic devices such as cell phones, pagers or audio equipment 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.
- 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.
1. Release the fuel system pressure.
2. Disconnect the fuel jumper tube-to-fuel rail quick connect coupling.
3. Install the special tool between the fuel jumper tube and the fuel rail.
4. NOTE: The inertia fuel shutoff (IFS) switch was disconnected previously in the fuel system pressure release.
Connect the IFS switch electrical connector.
5. NOTE:
- Carry out a key ON engine OFF (KOEO) visual inspection for fuel leaks prior to completing the Fuel System Pressure Test.
- After completion of the fuel system pressure test, open the drain valve on the special tool and release any residual fuel into a suitable container prior to removing the tool.
Test the fuel system pressure to make sure it is within the specified range.