GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 34730-1A Fuel Pressure Gage
    • J 34730-262 Fuel Pressure Gage Fitting

    Object Number: 180378  Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Important: Mount the fuel pressure gage fitting below the belt to avoid contact with the belt.

  3. Install the J 34730-262 to the fuel pressure connection.
  4. 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.
  5. 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.
  6. Drain any fuel remaining in the fuel pressure gauge into an approved container.