For 1990-2009 cars only
Tools Required
J 34730-1A Fuel Pressure Gage
Caution: Relieve the fuel system pressure before servicing fuel system components in order to reduce the risk of fire and personal injury.
After relieving the system pressure, a small amount of fuel may be released when servicing the fuel lines or connections. In order to reduce the chance of personal injury, cover the regulator and the fuel line fittings with a shop towel before disconnecting. This will catch any fuel that may leak out. Place the towel in an approved container when the disconnection is complete.- 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 engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement in Engine Mechanical - 6.0L.
- Loosen the fuel filler cap in order to relieve the fuel tank vapor pressure.
- Connect the J 34730-1A to the fuel pressure valve. Wrap a shop towel around the fitting while connecting the gage in order to avoid spillage.
- Install the bleed hose of the gage into an approved container.
- Open the valve on the gage to bleed the system pressure. The fuel connections are now safe for servicing.
- Drain any fuel remaining in the gage into an approved container.
