Fuel Pressure Release: Service and Repair

TOOL REQUIRED
J 34730-1A Fuel Pressure Gauge

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.

CAUTION: Refer to Battery Disconnect Caution In Service Precautions.

1. Disconnect the negative battery cable in order to avoid possible fuel discharge it an accidental attempt is made to start the engine.
2. Loosen the fuel filler cap in order to relieve the tank vapor pressure.
3. Connect the J34730-1A fuel pressure gauge or the equivalent to the fuel pressure connection.
4. Wrap a shop towel around the fitting while connecting the gauge in order to avoid spillage.
5. Install the bleed hose of the gauge into an approved container.
6. Open the valve on the gauge in order to bleed the system pressure. The fuel connections are now sate for servicing.
7. Drain any fuel remaining in the gauge into an approved container.