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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1026 (Engine Controls And Fuel - 6.6L - Introduction (2 Of 2)) >> Repair Instructions >> Fuel Tank Replacement (Cab/Chassis - Rear) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Fuel Tank, Strap & Bolts (Cab/Chassis - Rear)
    GM1228170Courtesy of GENERAL MOTORS CORP.
  1. If the fuel tank was replaced, install the sending unit. Refer to Fuel Sender Assembly Replacement .
  2. Remove the caps from the fuel lines.
  3. With the aid of an assistant, place the fuel tank on the jack.
  4. Raise the fuel tank.
  5. Install the fuel tank straps.
    NOTE: Refer to Fastener Notice .
  6. Install the fuel tank strap bolts.

    Tighten:  Tighten the bolts to 40 N.m (30 lb ft).

  7. Remove the jack from under the fuel tank.
    8. Fig 2: Fuel Tank Shield & Bolts (Cab/Chassis - Rear)
    GM1228172Courtesy of GENERAL MOTORS CORP.
  8. If equipped, install the fuel tank cover.
  9. If equipped, install the fuel tank cover bolts.

    Tighten:  Tighten the bolts to 18 N.m (13 lb ft).

  10. Lower the vehicle.
    11. Fig 3: View Of Fuel Feed And Return Lines At Sending Unit (Cab/Chassis - Rear)
    GM1228193Courtesy of GENERAL MOTORS CORP.
  11. Connect the fuel feed and return lines to the sending unit. Refer to Metal Collar Quick Connect Fitting Service .
    12. Fig 4: View Of Sending Unit Electrical Connector (Cab/Chassis - Rear)
    GM1333147Courtesy of GENERAL MOTORS CORP.
  12. Connect the sending unit electrical connector.
    13. Fig 5: Fuel Fill Pipe Hose Clamp & Fuel Vent Pipe Hose Clamp
    GM1228175Courtesy of GENERAL MOTORS CORP.
  13. Install the fuel fill and vent hose to the tank.
  14. Tighten the fuel fill and vent hose clamps (1, 2) at the tank.

    Tighten:  Tighten the hose clamps to 2.5 N.m (22 lb in).

  15. Fill the fuel tank.
  16. Install the fuel fill cap.
  17. Install the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (w/Single Battery) or Battery Negative Cable Disconnection and Connection (w/Auxiliary Battery) or Battery Negative Cable Disconnection and Connection (w/Dual Batteries) .
  18. Using a scan tool, command the fuel transfer pump on.
  19. Prime the fuel system. Refer to Fuel System Priming .
  20. Start the engine. If the engine stalls, repeat the above step.
  21. Once the engine starts, inspect for fuel leaks.
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