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Home >> Hummer >> 2010 >> H3 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Engine Control System & Fuel System - 3.7L - Repair Instructions) >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Canyon and 2010 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Fuel Injector ID Number
GM351196Courtesy 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 Rail Assembly, Injector And Clip
    GM1772140Courtesy of GENERAL MOTORS CORP.
  1. Lightly lubricate the NEW fuel injector O-ring seals (2 and 3) with GM P/N 9981704.
  2. Install the NEW fuel injector O-ring seals onto the fuel injector.
  3. Install a NEW retainer clip (1) to the fuel injector.
  4. Push the fuel injector into the rail socket with the electrical connector end facing outward. The retainer clip locks onto the flange of the fuel rail injector socket.
  5. Connect the fuel injector harness connector to the fuel injector.
  6. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .