Installation Procedure

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

Fig 1: Locating Fuel Injector Assembly Labeling

Courtesy of GENERAL MOTORS CORP.

The fuel injector assembly is stamped with a part number identification (2), a manufacturing date (3), a week code (1), and a production plant number (4).

Fig 2: View Of Fuel Rail & Fuel Injector

Courtesy of GENERAL MOTORS CORP.

Lubricate the new injector O-ring seals with clean engine oil.
Install the new injector O-ring seals on the injector.
Install a new retainer clip 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 .