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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 951 (Engine Controls - 6.6L (LLY) (Introduction)) >> Repair Instructions >> Fuel Hose Replacement - Fuel Injection Pump to Fuel Feed Block >> 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 water outlet. Refer to Water Outlet Tube Replacement (6.6L (LB7) Engine) or Water Outlet Tube Replacement (6.6L (LLY) Engine) in Engine Cooling.
  2. Remove the air intake tube. Refer to Air Intake Pipe Replacement .
    Fig 1: View Of Fuel Hose Clamps At The Return/Feed Line
    GM1387644Courtesy of GENERAL MOTORS CORP.
  3. Reposition the fuel hose clamps (1) at the return/feed line as required.
    4. Fig 2: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the fuel hoses from the return/feed line as required.
    5. Fig 3: View Of Fuel Hoses & Clamps At Injection Pump
    GM1387646Courtesy of GENERAL MOTORS CORP.
  5. Reposition the fuel hose clamps (1) at the injection pump as required.
  6. Disconnect the fuel hoses (2, 3) from the injection pump as required.
  7. Remove the fuel hoses from the vehicle as required.


    Fig 1: View Of Fuel Hoses & Clamps At Injection Pump
    GM1387646Courtesy of GENERAL MOTORS CORP.
  1. Install the fuel hoses to the vehicle as required.
  2. Connect the fuel hoses (2, 3) to the injection pump as required.
  3. Position the fuel hose clamps (1) at the injection pump as required.
    4. Fig 2: View Of Fuel Hose Connections
    GM1335595Courtesy of GENERAL MOTORS CORP.
  4. Connect the fuel hoses to the return/feed line as required.
    5. Fig 3: View Of Fuel Hose Clamps At The Return/Feed Line
    GM1387644Courtesy of GENERAL MOTORS CORP.
  5. Position the fuel hose clamps (1) at the return/feed line as required.
  6. Install the air intake tube. Refer to Air Intake Pipe Replacement .
  7. 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.
  8. Prime the fuel system. Refer to Fuel System Priming .
  9. Start the engine. If the engine stalls, repeat the above step.
  10. Once the engine starts, inspect for fuel leaks.
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