Tools Required
J 34730-1A Fuel Pressure Gage
- Turn the ignition OFF.
- Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt is made to start the engine. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
- Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical-3.5 L.
- Connect the J 34730-1A to the fuel pressure valve. Wrap a shop towel around the fitting while connecting the gauge in order to avoid spillage. Refer to Fuel Pressure Gage Installation and Removal .
- Install the bleed hose into an approved container.
- Open the valve in order to bleed the system pressure. The fuel connections are now safe for servicing.
- Drain any fuel remaining in the gauge into an approved container.
Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.
Caution: Remove the fuel tank cap and relieve the fuel system pressure before servicing the fuel system in order to reduce the risk of personal injury. After you relieve the fuel system pressure, a small amount of fuel may be released when servicing the fuel lines, the fuel injection pump, or the connections. In order to reduce the risk of personal injury, cover the fuel system components with a shop towel before disconnection. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.
