Installation Procedure

Fig 1: Locating Fuel Injector ID Number

Courtesy of GENERAL MOTORS CORP.

NOTE: When ordering new fuel injectors, you must order the correct injector for the application being serviced.

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.

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

Courtesy of GENERAL MOTORS CORP.

Lubricate the NEW injector O-ring seals (2 and 4) with clean engine oil.
Install the NEW injector O-ring seals (2 and 4) onto the injector (3).
Install a NEW retainer clip (1) on the injector (3).

Fig 3: Identifying Fuel Rail, Injectors & Components

Courtesy of GENERAL MOTORS CORP.

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.
Install the fuel rail. Refer to Fuel Injection Fuel Rail Assembly Replacement .