Installation Procedure

Fig 1: Locating Fuel Injector ID Number

Courtesy of GENERAL MOTORS CORP.

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

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

Fig 2: View Of Fuel Injector, Clip & O-Rings

Courtesy of GENERAL MOTORS CORP.

Lightly lubricate the NEW fuel injector O-ring seals (2, 4) with GM P/N 9981704.
Install the NEW fuel injector O-ring seals (2, 4) onto the fuel injector (3).

Fig 3: View Of Fuel Rail Assembly With Injectors

Courtesy of GENERAL MOTORS CORP.

Push the fuel injector into the fuel rail injector socket with the electrical connector end facing outward.
Install a NEW retainer clip (1) to the fuel injector (3).
Connect the fuel injector harness connector to the fuel injector.
Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .