Sierra 3500 Denali 4WD V8-6.0L (2011)
10. If equipped with 5 ft 8 in. bed, perform the following steps:
11. Disconnect the fuel tank evaporative emission (EVAP) line quick connect fitting (2) from the fuel fill pipe recirculation line. Refer to Plastic
Collar Quick Connect Fitting Service (See: Fuel Line Coupler/Service and Repair/Plastic Collar Quick Connect Fitting Service).
12. Loosen the fuel tank fill pipe clamp (1) at the fuel tank.
13. Remove the fuel tank fill pipe.
14. Cap the opening on the fuel tank in order to prevent possible system contamination.
15. If equipped with 6 ft 5 in. bed, perform the following steps:
16. Disconnect the fuel tank EVAP line quick connect fitting (1) from the fuel fill pipe recirculation line. Refer to Plastic Collar Quick Connect Fitting
Service (See: Fuel Line Coupler/Service and Repair/Plastic Collar Quick Connect Fitting Service).
17. Loosen the fuel tank fill pipe clamp (2) at the fuel tank.
18. Remove the fuel tank fill pipe.
19. Cap the opening on the fuel tank in order to prevent possible system contamination.
Installation Procedure
