Vapor Purge Valve/Carbon Canister Solenoid Valve fit For Buick fit For Chevrolet fit For Cadillac fit For Silverado. OEM NO. : 12606684. Reduces fuel gas emissions: effectively controls and recovers petrol vapour evaporated from the automotive fuel system, reducing pollutant emissions. This electronically controlled valve is responsible for purging accumulated fuel vapors from the canister storage. Central to modern evaporative emission control, this valve's failure can lead to poor drivability, increased fuel consumption, and failed emissions inspections., Manufacturer: XINQQDC