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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 Fuel Feed Pipe Replacement - Right >> Removal Procedure

Removal 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.
  1. Remove the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .
  2. Remove the water outlet. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
  3. Remove the exhaust gas recirculation (EGR) cooler tube. Refer to Exhaust Gas Recirculation (EGR) Valve Cooler Tube Replacement .
  4. Disconnect the right fuel rail feed pipe fittings (1, 3).
    Fig 1: View Of Fuel Rail Feed Pipe
    GM1387855Courtesy of GENERAL MOTORS CORP.
  5. Remove the fuel rail pipe clamp bolts (2).
    6. Fig 2: View Of Fuel Rail Balance Pipe & Bolts
    GM1335586Courtesy of GENERAL MOTORS CORP.
  6. Remove the right fuel rail feed pipe.


  1. Install the right fuel rail feed pipe.
    Fig 1: View Of Fuel Rail Balance Pipe & Bolts
    GM1335586Courtesy of GENERAL MOTORS CORP.
    2. Fig 2: View Of Fuel Rail Feed Pipe
    GM1387855Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the fuel rail pipe clamp bolts (2).

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

  3. Connect the right fuel rail feed pipe fittings (1, 3).

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

  4. Install the EGR cooler tube. Refer to Exhaust Gas Recirculation (EGR) Valve Cooler Tube Replacement .
  5. Install the water outlet. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
  6. Install the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .
  7. Prime the fuel system. Refer to Fuel System Priming .
  8. Start the engine. If the engine stalls, repeat the above step.
  9. Once the engine starts, inspect for fuel leaks.
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