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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 977 (Engine Controls - 6.6L (LLY) (Introduction)) >> Repair Instructions >> Fuel Rail Assembly Replacement - Bank 2 >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Right Fuel Rail
    GM1335617Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the fuel rail.
  2. Install the fuel rail bolts.

    Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

    3. Fig 2: View Of Fuel Injector Pipes
    GM1335614Courtesy of GENERAL MOTORS CORP.
    NOTE: Ensure proper torquing of the fuel injector line. An under-torqued fuel injector line will not seal properly and an over-torqued fuel injector line may damage the fuel injector fitting. An improperly sealed or damaged fuel injector line or fuel injector fitting will cause a fuel leak.
  3. Install the fuel injector pipes.

    Tighten:  Tighten the fittings to 41 N.m (30 lb ft).

  4. After installing the fuel injector pipes, clean the injector pipes and apply sealant GM P/N 97720043, at the fittings to prevent moisture and debris from collecting between the line and fitting.
    5. Fig 3: View Of Fuel Rail Balance Pipe & Bolts
    GM1335586Courtesy of GENERAL MOTORS CORP.
  5. Install the fuel rail balance pipe.
  6. Connect the fuel rail balance pipe to the fuel rails.

    Tighten:  Tighten the fittings to 41 N.m (30 lb ft).

  7. Install the fuel rail balance pipe bolts.

    Tighten:  Tighten the bolts 25 N.m (18 lb ft).

  8. Install the PCV hose/pipe. Refer to Crankcase Ventilation Hoses/Pipes Replacement in Engine Mechanical - 6.6L (LLY).
  9. Install the EGR cooler tube. Refer to Exhaust Gas Recirculation (EGR) Valve Cooler Tube Replacement .
  10. Install the fuel filter. Refer to Fuel Filter Replacement .
  11. Install the FICM. Refer to Fuel Injection Control Module Replacement .
  12. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  13. Connect the negative battery cables. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  14. Prime the fuel system. Refer to Fuel System Priming .
  15. Start the engine. If the engine stalls, repeat the above step.
  16. Once the engine starts, inspect for fuel leaks.
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