Fuel Pressure Relief Procedure

Tools Required

• J 34730-1A  Fuel Pressure Gage. See Special Tools .
• J 34730-262  Fuel Pressure Gage Fitting. See Special Tools .

Fig 1: Identifying Fuel Pressure Gauge J 34730-1A
Courtesy of GENERAL MOTORS CORP.
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
IMPORTANT: Mount the fuel pressure gage fitting below the belt to avoid contact with the belt.
2. Install the J 34730-262  to the fuel pressure connection.
3. Connect J 34730-1A  to the fuel pressure gage fitting. Wrap a shop towel around the fuel pressure connection while connecting the fuel pressure gage in order to avoid spillage.
4. 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.
5. Drain any fuel remaining in the fuel pressure gauge into an approved container.