Installation Procedure

Fig 1: Locating Fuel Injector ID Number

Courtesy of GENERAL MOTORS CORP.

The fuel injector (1) is stamped with a identification part number (2). A 4-digit build date code (3) indicates the month (4), day (5), year (6), and the shift (7) that built the injector.

1. Lubricate the NEW injector O-ring seals (2 and 4) with clean engine oil.
   Fig 2: View Of Fuel Injector, Clip & O-Rings

   Courtesy of GENERAL MOTORS CORP.
2. Install the NEW injector O-ring seals (2 and 4) onto the injector (3).
3. Install a NEW retainer clip (1) on the injector (3).
4. Push the fuel injector into the fuel rail injector socket with the electrical connector facing outward. The retainer clip locks on to a flange on the fuel rail injector socket.
   Fig 3: Identifying Fuel Rail, Injectors & Components

   Courtesy of GENERAL MOTORS CORP.
5. Install the fuel rail. Refer to Fuel Rail Assembly Replacement .