Installation Procedure

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 (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 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 onto the injector.
Install a NEW retaining clip (1) on the injector.
Push the fuel injector (5) into the fuel rail with the electrical connector facing outwards. The retaining clip (4) locks onto a flange on the fuel rail injector socket.
Install the fuel rail. Refer to Fuel Rail Assembly Replacement .