The GMC Sierra Vapor Canister traps fuel vapors and prevents their emission to the air, reducing smog-forming hydrocarbons and saving fuel. Tucked near the tank or inside the engine bay, this charcoal-filled Vapor Canister stores evaporated gasoline in millions of microscopic pores. It then hands off the vapor to the engine when a purge valve opens and manifold vacuum draws fresh air through the charcoal. Earlier versions of trucks had a simple Vapor Canister with a pressure relief cap, while OBD II versions have a vent solenoid and a tank pressure sensor so that the engine computer can test the system for leaks. Both styles have the same storage principle, but the newer setup allows the computer to seal the lines, create a small vacuum, and detect loose caps or cracked hoses before pollution escapes, ensuring that GMC standards remain high. A properly functioning Vapor Canister also helps to cushion the pressure swings inside the tank, which helps to provide good drivability. Every GMC pickup from classic carbureted days to today's fuel-injected Sierra and current Sierra trims is counting on its Vapor Canister to maintain a balance between clean air rules and dependable performance.
Each OEM GMC Sierra Vapor Canister we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.