fuel vapors are stored in the charcoal canister before being redirected to the vehicle's intake system to be burned. The EVAP system not only reduces harmful vapors from entering the atmosphere ...

Part of the car’s emissions controls, this charcoal-filled canister’s job is to absorb fuel vapor that would otherwise vent out to the atmosphere, causing pollution. Vapors trapped by the ...

Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum ...

Topping off could damage the onboard refueling vapor recovery (ORVR) system, a charcoal canister that collects potentially ...

Filming from beneath a lifted Chevy Suburban, Obrochta points out the vehicle’s canister vent valve and emissions system. He notes the key components—including the filter—are placed directly behind ...

In the charcoal canister, the purge valve is the opening that releases fuel vapors that were absorbed by the charcoal back into the engine for combustion. A failed purge valve is one of many ...