Installation Procedure

Important:  When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.

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

Fig 1: Fuel Injector Assembly & Identification Stamp

Courtesy of GENERAL MOTORS CORP.

1. Lubricate the new injector O-ring seals (2), (4) with clean engine oil.
2. Install the new injector O-ring seals on the injector.
3. Install a new retainer clip (1) on the injector.
   Fig 2: Injector Retainer Clip, O-Ring Seals & Injector

   Courtesy of GENERAL MOTORS CORP.
4. Push the fuel injector (5) into the fuel rail injector socket with the electrical connector facing outwards. The retainer clip (4) locks on to a flange on the fuel rail injector socket.
5. Install the fuel rail assembly. Refer to Fuel Rail Assembly Replacement .
   Fig 3: Fuel Injector & Retainer Clip

   Courtesy of GENERAL MOTORS CORP.