Yukon/Denali XL 1500 2WD V8-5.3L VIN Z Flex Fuel (2004)
Evaporative Emissions Hose: Service and Repair
Evaporative Emission (EVAP) System Hoses/Pipes Replacement
EVAPORATIVE EMISSION (EVAP) SYSTEM HOSES/PIPES REPLACEMENT
REMOVAL PROCEDURE
IMPORTANT: Clean all fuel pipe connections and surrounding areas before disconnecting the pipes in order to avoid possible fuel system
contamination.
1. Remove the fuel tank.
2. Disconnect the fuel feed pipe (4) and return pipe (5) from the sending unit (2).
3. Disconnect the fuel feed pipe (4) and return pipe (5) from the fuel tank clips (6).
4. Cap the fuel pipes in order to prevent possible fuel system contamination.
INSTALLATION PROCEDURE
1. Remove the caps from the fuel pipes.
2. Connect the fuel feed pipe (4) and return pipe (5) to the fuel tank clips (6).
3. Connect the fuel feed pipe (4) and return pipe (5) to the sending unit (2).
4. Install the fuel tank.
