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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1026 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Injector Replacement (Left) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Fuel Injector Copper Washers
    GM1335628Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW copper washer to the fuel injector bore.
  2. Install a NEW O-ring onto the fuel injector.
  3. If necessary, install the fuel injector bracket pins.
    4. Fig 2: View Of Left Fuel Injectors W/Brackets
    GM1335621Courtesy of GENERAL MOTORS CORP.
  4. Install the fuel injectors with brackets.
    5. Fig 3: View Of Left Fuel Injector Bracket Bolts
    GM1335618Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  5. Install the fuel injector bracket bolts.

    Tighten:  Tighten the bolts to 30 N.m (22 lb ft).

    6. Fig 4: View Of Fuel Injector Electrical Connectors
    GM1335536Courtesy of GENERAL MOTORS CORP.
  6. Connect the engine wiring harness electrical connectors to the fuel injectors.
  7. Install the left fuel injection fuel return pipe. Refer to Fuel Injection Fuel Return Pipe Replacement - Left Side .
  8. Install the left fuel injection fuel feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Left Side .
  9. If the fuel injectors were replaced, refer to Fuel Injector Flow Rate Programming .
  10. Prime the fuel system. Refer to Fuel System Priming .
  11. Start the engine. If the engine stalls, repeat the above step.
  12. Once the engine starts, inspect for fuel leaks.
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