Explore Ford Fusion Evaporative Emission Control Valve & Ford Fusion Evap Canister Purge Valve. Browse Ford Fusion Vapor Canister Purge Valve. Maintaining the vapor canister valve in your Ford Fusion is pivotal for controlling emissions and ensuring optimal performance. To extend its lifespan, regularly check for cracks or damage, and replace the filter as needed. Signs that you might need a replacement include difficulty starting the engine, poor fuel economy, or an illuminated check engine light. When selecting a new valve, opt for OEM-grade materials to guarantee compatibility and durability. Installation is straightforward, but always disconnect the battery before beginning to ensure safety. By choosing the right valve and adhering to maintenance guidelines, you'll enhance your Fusion's efficiency and contribute to a cleaner environment.