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Fuel Tank: Installation

  1. If fuel tank replacement was necessary, install the fuel sender assembly to the fuel tank. See FUEL SENDER ASSEMBLY  .
  2. Have an assistant support the fuel tank during fuel tank and fuel tank strap installation.
  3. Begin to install the left side of the fuel tank over the exhaust pipe.
  4. Raise the right side of the fuel tank into position inboard of the right frame rail. Use care in feeding the fuel feed and return pipes, the EVAP vapor pipe, and the fuel pump module electrical harness over the rear axle.
  5. Install the right side fuel tank strap and strap bolts. See Fig 3 .
  6. Install the left side fuel tank strap and strap bolts.
  7. Tighten the fuel tank strap bolts. Tighten the bolts to specification. See TORQUE SPECIFICATIONS  .
  8. Raise the exhaust into position and install the muffler insulator to the underbody hanger. See Fig 2 .
  9. Install the exhaust extension pipe insulators to the underbody hangers.
  10. Connect the fuel pump module harness electrical connector to the vehicle underbody connector. See Fig 1 .
  11. Connect the fuel filler hose to the fuel tank.
  12. Tighten the fuel filler hose clamp at the fuel tank. See Figure . Tighten the clamp to specification. See TORQUE SPECIFICATIONS  .
  13. Remove the caps or plugs from the EVAP purge and vapor pipes.
  14. Connect the EVAP purge pipe and vapor pipe to the EVAP canister. See FUEL LINE DISCONNECT FITTINGS  . See Figure .
  15. Remove the caps or plugs from the fuel tank feed and return pipes.
  16. Connect the fuel feed and return lines to the fuel filter.
  17. Lower the vehicle.
  18. Refill the fuel tank.
  19. Connect the negative battery cable.
  20. Inspect for fuel leaks using the following procedure:
    • Turn ON the ignition, with the engine OFF for 2 seconds.
    • Turn OFF the ignition for 10 seconds.
    • Turn ON the ignition, with the engine OFF.
    • Inspect for fuel leaks.
Fig 1: Removing & Installing Fuel Tank (1 Of 3)
G00253833Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing & Installing Fuel Tank (2 Of 3)
G00253834Courtesy of GENERAL MOTORS CORP.
Fig 3: Removing & Installing Fuel Tank (3 Of 3)
G00253835Courtesy of GENERAL MOTORS CORP.