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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1560 (Engine Control System & Fuel System - 6.6L (LMM) - Repair Instructions) >> Repair Instructions >> Fuel Tank Replacement (Cab/Chassis - Front) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Fuel Feed & Pressure Balance Lines
    GM1228187Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the fuel feed and pressure balance rear lines. Refer to Metal Collar Quick Connect Fitting Service .
  2. Fig 2: View Of Fuel Fill Pipe Clamp & Vent Pipe Clamp
    GM1228174Courtesy of GENERAL MOTORS CORP.
  3. Loosen the fuel fill and vent hose clamps (1, 2) at the fuel tank.
  4. Remove the fuel fill pipe and vent hose from the tank.
  5. Drain the fuel tank. Refer to Fuel Tank Draining .
  6. Fig 3: Fuel Pressure Sensor Electrical Connector & Fuel Sending Unit Electrical Connector
    GM1238183Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the sending unit electrical connectors (1).
  8. Fig 4: Fuel Feed & EVAP Quick Connect Fittings At Sending Unit
    GM1228206Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the fuel feed and return lines from the fuel tank. Refer to Metal Collar Quick Connect Fitting Service .
  10. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  11. Fig 5: Fuel Tank Shield & Bolts
    GM877744Courtesy of GENERAL MOTORS CORP.
  12. If necessary, remove the fuel tank shield bolts.
  13. If necessary, remove the fuel tank shield.
  14. Place a suitable adjustable jack under the fuel tank.
  15. Fig 6: Fuel Tank, Strap & Bolts
    GM1228169Courtesy of GENERAL MOTORS CORP.
  16. Remove the fuel tank strap bolts.
  17. Remove the fuel tank straps.
  18. Lower the fuel tank.
  19. With the aid of an assistant, place the fuel tank in a suitable work area.
  20. Cap the fuel lines on the vehicle in order to prevent possible fuel system contamination.
  21. If replacing the fuel tank, remove the sending unit. Refer to Fuel Sender Assembly Replacement .