Silverado 1500 2WD V6-4.3L VIN X (2004)
Evaporative Emissions Hose: Service and Repair
Engine
EVAPORATIVE EMISSION (EVAP) HOSES/PIPES REPLACEMENT - ENGINE
REMOVAL PROCEDURE
IMPORTANT: Clean the pipe connections and surrounding areas before disconnecting in order to avoid possible evaporative emission (EVAP)
system contamination.
1. Disconnect the EVAP pipe at the EVAP canister purge valve.
2. Disconnect the EVAP pipe from the chassis pipe.
3. Remove the EVAP pipe.
4. Cap the EVAP purge valve and the chassis EVAP pipe in order to prevent possible EVAP system contamination.
INSTALLATION PROCEDURE
1. Remove the caps from the EVAP purge valve and the chassis EVAP pipe.
2. Install the EVAP pipe.
3. Connect the EVAP pipe to the chassis pipe.
4. Connect the EVAP pipe to the EVAP canister purge valve.
