Evaporative Emissions System: Description and Operation

EVAPORATIVE EMISSION CONTROL SYSTEM.
The evaporative control system prevents fuel vapors from escaping the fuel tank into the atmosphere. It consists of a charcoal canister, gravity/roll-over valve, solenoid valve(s), and vapor hoses. The system collects fuel vapors from the fuel tank and directs them to a charcoal canister to be condensed and stored. When the engine is running, fuel and vapors stored in the canister are drawn into the engine to be burned.