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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 (Pickup) >> 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 Tank Filler Housing To Body Screws & Retainer
    GM853731Courtesy of GENERAL MOTORS CORP.
  1. Drain the fuel tank. Refer to Fuel Tank Draining .
  2. Remove the fuel tank filler housing to body screws (1), and retainer (2).
    3. Fig 2: Fuel Tank Filler Housing
    GM300318Courtesy of GENERAL MOTORS CORP.
  3. Remove the fuel tank filler housing to fuel tank fill pipe screws.
  4. Remove the fuel tank filler housing.
    5. Fig 3: Rear Axle Vent Hose On Fuel Fill Pipe
    GM1238161Courtesy of GENERAL MOTORS CORP.
  5. Remove the rear axle vent hose from the clip on the fuel fill pipe bracket.
  6. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
    7. Fig 4: Fuel Tank Fill Pipe Ground Wire Bolt, Ground Wire & Chassis Harness Ground Wire
    GM1238144Courtesy of GENERAL MOTORS CORP.
  7. Remove the fuel tank ground strap bolt (1).
  8. Reposition the fuel tank ground strap (3).
    9. Fig 5: Fuel Fill Pipe Assembly
    GM1378752Courtesy of GENERAL MOTORS CORP.
  9. Loosen the fill pipe vent hose clamp (1) at the fuel tank.
  10. Remove the fill pipe vent hose from the fuel tank.
  11. Remove the fill pipe.
  12. Remove the fuel system cooler. Refer to Fuel Cooler Replacement (Pickup)  or Fuel Cooler Replacement (Cab/Chassis) .
    13. Fig 6: View Of Fuel Tank Shield & Bolts
    GM626413Courtesy of GENERAL MOTORS CORP.
  13. If equipped, remove the fuel tank shield bolts.
  14. If equipped, remove the fuel tank shield.
    15. Fig 7: View Of Fuel Feed & Return Lines At Fuel Tank
    GM1228124Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the fuel feed and return lines. Refer to Metal Collar Quick Connect Fitting Service .
  16. Cap the fuel lines in order to prevent possible fuel system contamination.
  17. Place a suitable adjustable jack under the fuel tank.
    18. Fig 8: Fuel Tank Assembly
    GM1228093Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fuel Tank Strap Fastener Caution .
  18. Remove the fuel tank strap bolts.
  19. Remove the fuel tank straps.
  20. Lower the fuel tank until the sending unit electrical connector is accessible.
  21. Disconnect the sending unit electrical connector.
  22. Completely lower the fuel tank.
  23. With the aid of an assistant, place the fuel tank in a suitable work area.
    24. Fig 9: View Of Fuel Feed & Return Lines At Sending Unit
    GM1306338Courtesy of GENERAL MOTORS CORP.
  24. If necessary, disconnect and remove the fuel feed (1) and return (2) lines from the sending unit and retaining clips. Refer to Metal Collar Quick Connect Fitting Service .
  25. If replacing the fuel tank, remove the sending unit. Refer to Fuel Sender Assembly Replacement .
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