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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 950 (Engine Controls - 6.6L (Lb7) (Introduction)) >> Repair Instructions >> Fuel Hose Replacement - Fuel Feed Block to Schrader Valve >> 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. Drain the cooling system. Refer to Draining and Filling Cooling System (with HP2) or Draining and Filling Cooling System (without HP2) in Engine Cooling.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (Single Battery) or Battery Negative Cable Disconnect/Connect Procedure (Auxiliary Battery) in Engine Electrical.
  3. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  4. Loosen the charged air cooler outlet duct clamp (1).
    IMPORTANT: Do not use a screwdriver or other tool to pry the hose loose. The hose can be torn or damaged. Loosen the hose by twisting.
    5. Fig 1: View Of Charged Air Cooler Outlet Duct & Clamps
    GM877275Courtesy of GENERAL MOTORS CORP.
  5. Remove the charged air cooler outlet duct.
  6. Loosen the charged air cooler inlet duct to turbocharger clamp (1).
    7. Fig 2: View Of Charged Air Cooler Inlet Duct & Clamps
    GM877281Courtesy of GENERAL MOTORS CORP.
  7. Remove the charged air cooler inlet duct from the turbocharger.
  8. Remove the engine wiring harness. Refer to Engine Wiring Harness Assembly Replacement .
  9. Remove the Schrader valve nuts (1) and bracket (2).
    10. Fig 3: Schrader Valve Nuts And Bracket
    GM755184Courtesy of GENERAL MOTORS CORP.
  10. Reposition the fuel hose clamps.
  11. Remove the fuel hose (1) from the fuel feed block.
    12. Fig 4: Fuel Hose At Fuel Feed Block
    GM791989Courtesy of GENERAL MOTORS CORP.
  12. Remove the Schrader valve and fuel hose from the engine.
  13. Remove the fuel hose from valve.
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