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Home >> Buick >> 2005 >> LeSabre Custom, 4T65E/MN3 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Introduction >> Repair Instructions >> Fuel Pressure Gage Installation and Removal >> Installation Procedure
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Installation Procedure

    Fig 1: Identifying Fuel Pressure Gauge J 34730-1A
    GM180378Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36) in Engine Mechanical.
  2. Remove the cap from the fuel pressure service connection.
  3. Install the J 34730-1A  to the fuel pressure service connection, located on the fuel rail. See Special Tools . Wrap a shop towel around the fitting while connecting the J 34730-1A  to avoid spillage. See Special Tools .
  4. Turn the ignition ON, with the engine OFF.
  5. Place the bleed hose of the J 34730-1A  into an approved gasoline container. See Special Tools .
  6. Open the bleed valve on the J 34730-1A  in order to bleed the air from the fuel pressure gage. See Special Tools .
  7. Command the fuel pump ON with a scan tool.
  8. Close the bleed valve on the J 34730-1A  . See Special Tools .
  9. Inspect for fuel leaks.
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