Fuel System Pressure Release

Fuel system is under pressure. Pressure must be released prior to servicing fuel system. Fuel pressure may be released by using the following method:

1. Disconnect the negative battery cable.
2. Connect the Fuel Pressure Gauge (J 34730-1A), or equivalent, to the fuel pressure connection. See Fig 1 .
3. Install the bleed hose into an approved container and open the valve to bleed the system pressure. The fuel connections are now safe for servicing.
4. Disconnect the fuel pressure gauge from the fuel pressure connection.

Fig 1: Connecting Fuel Pressure Gauge (J 34730-1A)

Courtesy of GENERAL MOTORS CORP.