pontiac Workshop Repair Guides

Pontiac Workshop Service and Repair Manuals

Evaporative Emission Control Canister > < Canister Purge Solenoid|Locations|Page 5091
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Canister Purge Solenoid: Description and Operation

EVAP VENT VALVE

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

Evaporative Emission Control Canister > < Canister Purge Solenoid|Locations|Page 5091