F 350 2WD Super Duty V8-6.4L DSL Turbo (2009)
Fuel Pressure Release: Service and Repair
Fuel System Pressure Release
Fuel System Pressure Release - Diesel Engine
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.
WARNING: Do not work on the fuel system until the pressure has been released and the engine has cooled. Fuel in the high-pressure fuel
system is hot and under very high pressure. High-pressure fuel may cause cuts and contact with hot fuel may cause burns. Failure to follow
these instructions may result in serious personal injury.
NOTE: This procedure is for releasing the low-pressure fuel system pressure. The high-pressure fuel system cannot be relieved of pressure manually.
The high-pressure fuel system will lose pressure as the engine cools down. The pressure will bleed off after approximately 30 seconds with the key in the
OFF position. Wait for the engine to be cool before servicing the high-pressure fuel system.
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect both battery ground cables.
3. Remove the Schrader valve cap.
4. NOTE: It may be necessary to remove the degas bottle cap to install the Fuel Pressure Test Kit onto the Schrader valve. If the degas bottle cap is
removed, cap off the degas bottle to prevent foreign material from entering the degas bottle.
Install the Fuel Pressure Test Kit onto the Schrader valve.
5. NOTE: Open manual valve slowly to relieve the system pressure. This may drain fuel from the fuel system. Place the fuel in a suitable container.
Open the manual valve on the Fuel Pressure Test Kit and relieve the fuel pressure.
