Sierra Denali RWD V8-6.2L (2009)
Evaporative Emissions Hose: Service and Repair
Evaporative Emission Line Replacement - Engine
Evaporative Emission Hoses/Pipes Replacement - Engine
Removal Procedure
Important: Clean all evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting the fittings in order to avoid
possible system contamination.
1. Remove the upper intake manifold sight shield. Refer to Upper Intake Manifold Sight Shield Replacement (See: Engine, Cooling and
Exhaust/Engine/Intake Manifold/Service and Repair) .
2. Disconnect the EVAP line quick connect fitting at the intake manifold. 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) .
3. Disconnect the EVAP line quick connect fitting at the EVAP canister purge solenoid. 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) .
Installation Procedure
