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Home >> GMC >> 2001 >> Safari Van 2WD V6-4.3L VIN W >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Evaporative Emissions System >> Description and Operation >> EVAP System Components >> EVAP Vent Valve

EVAP Vent Valve

The EVAP vent valve controls fresh airflow into the EVAP canister. It is a normally open valve. The control module will command the valve closed during some EVAP tests, allowing the system to be tested for leaks.
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