Yukon XL 4WD V8-5.3L (2011)
Evaporative Emissions Hose: Service and Repair
Evaporative Emission Line Replacement - Chassis
Evaporative Emission Line Replacement - Chassis
Removal Procedure
Note: Clean all fuel and evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting the lines in order to avoid possible
fuel and/or EVAP system contamination.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
2. Disconnect the fuel feed pipe (2) quick connect fitting at the fuel rail. Refer to Metal Collar Quick Connect Fitting Service See: Fuel Delivery
and Air Induction/Fuel Line Coupler/Service and Repair/Metal Collar Quick Connect Fitting Service.
3. Disconnect the EVAP line (1) quick connect fitting from the chassis line. Refer to Plastic Collar Quick Connect Fitting Service See: Fuel
Delivery and Air Induction/Fuel Line Coupler/Service and Repair/Plastic Collar Quick Connect Fitting Service.
4. Cap the fuel rail and EVAP line in order to prevent fuel/EVAP system contamination.
5. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle See: Maintenance/Vehicle Lifting/Service and Repair.
