K 1500 Yukon 4WD V8-5.3L VIN Z Flex Fuel (2003)
3. Remove the spare tire.
4. Remove the fuel tank filler housing to fuel tank fill pipe screws.
5. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
6. Open the rear axle vent hose clip (3) at the fill pipe and remove the vent hose.
