Yukon/Denali XL 1500 4WD V8-5.3L VIN T (2004)
Evaporative Emissions Hose: Service and Repair
EVAPORATIVE EMISSION (EVAP) 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 engine sight shield.
2. Disconnect the EVAP tube from the EVAP canister purge solenoid (1).
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Push the large size white retainer portion in.
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Push down, while pulling up slightly in order to disengage the tube.
3. Disconnect the EVAP tube from the chassis EVAP pipe (2).
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Push the large size white retainer portion in.
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Push down, while pulling up slightly in order the disengage the tube.
4. Remove the EVAP tube.
5. Cap the EVAP canister purge solenoid and the EVAP chassis pipe in order to prevent possible EVAP system contamination.
INSTALLATION PROCEDURE
