Installation Procedure

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Fig 1: Locating Fuel Injector ID Number

Courtesy of GENERAL MOTORS CORP.

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

Courtesy of GENERAL MOTORS CORP.

Lubricate the new injector O-ring seals (2, 4) with clean engine oil.
Install the new injector O-ring seals on the injector.
Install a new retainer clip (1) on the injector.
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 assembly. Refer to Fuel Rail Assembly Replacement .