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Since the introduction of the evaporative emissions system in 1971, nearly all vehicles have been required by law to have one. The evaporative emissions system takes the fuel vapors and sends them to the engine to be burned along with the air/fuel mixture. The fuel vapor is initially collected in the charcoal canister, or evaporation control canister. The charcoal absorbs the fuel vapors until the engine control module determines that they should be sent to the engine for combustion. Air passes through the charcoal, carries it through a tube, and enters into the intake manifold.
The evaporative emissions system can be checked for proper operation and should be done whenever a fuel system cleaning or service is performed. If the evaporation control canister is leaking or is plugged, have one of our expert technicians replace it.
A leaking evaporation control canister, or charcoal canister, can cause headaches or dizziness if the fuel vapors are inhaled. And in rare circumstances, a cracked canister that is leaking raw fuel can create a fire hazard. The canister should be replaced as soon as it is diagnosed as faulty.
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