Silverado 2008

Fuel Tank

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Properly relieve the fuel system pressure.
  6.  
  7. Drain the fuel tank.
  8.  
  9. Remove the fuel tank filler pipe.

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    Fig. Fuel tank filler pipe and related components-view one



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    Fig. Fuel tank filler pipe and related components-view two



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    Fig. Fuel tank filler pipe and related components-view three

  10.  
  11. Raise and support the vehicle safely.
  12.  
  13. Remove the fuel tank shield, if equipped.

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    Fig. Fuel tank shield-26 gallon tank



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    Fig. Fuel tank shield-34 gallon tank

  14.  
  15. Disconnect the electrical connectors.
  16.  
  17. Disconnect and plug the fuel lines.
  18.  
  19. Remove or reposition the EVAP canister assembly, as required.
  20.  
  21. Position a suitable jack under the fuel tank.
  22.  
  23. Remove the fuel tank strap bolts. Remove the fuel tank straps.
  24.  
  25. Carefully lower the fuel tank.
  26.  
  27. Disconnect any remaining wires or lines still connected to the tank.
  28.  
  29. Remove the tank from the vehicle.
  30.  
  31. Remove the fuel tank side shield, as required.

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    Fig. Fuel tank and retaining straps



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    Fig. Fuel tank side shield



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    Fig. Fuel tank and related components-26 gallon tank



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    Fig. Fuel tank and related components -34 gallon tank

  32.  

To install:


NOTE
Be sure to use new fasteners, as required.

  1. Installation is the reverse of removal. When installing the tank, be sure to inspect all lines, hoses and electrical connections first. Repair or replace as necessary.
  2.  
  3. Tighten the strap bolts to 30 ft. lbs. (40 Nm).
  4.  
  5. To check for leaks, refill the tank then turn the ignition ON (engine OFF) for 2 seconds. Turn the ignition OFF for 10 seconds. Turn the ignition ON again (engine OFF) and inspect the tank and lines for leaks.
  6.  

 
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