Sierra 1500 2WD V8-5.3L VIN B HO (2006)
8. Open the axle vent hose clip on the fuel fill pipe bracket.
9. Remove the rear axle vent hose from the clip.
10. Loosen the fuel tank fill pipe clamp (1) at the fuel tank.
11. Disconnect the recirculation line from the sending unit.
12. Remove the fuel tank fill pipe.
13. Cap the opening on the fuel tank in order to prevent possible system contamination.
INSTALLATION PROCEDURE