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Fuel Pressure Relief Procedure: Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: Identifying Fuel Pressure Gauge J 34730-1A
    GM180378Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Connect the J 34730-1A  to the fuel pressure connection. See Special Tools . Refer to Fuel Pressure Gage Installation and Removal .
  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 gage from the fuel pressure connection. Refer to Fuel Pressure Gage Installation and Removal .
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