What makes a charcoal canister leak gas?

A charcoal canister can leak gas due to several factors, including cracks or damage to the canister itself, a faulty seal or gasket, or a malfunctioning purge valve that fails to open and close properly. Additionally, excessive pressure buildup from a clogged vent line can cause the canister to rupture. Regular wear and tear or exposure to harsh conditions can also contribute to leaks. Proper maintenance and timely replacement of damaged components are essential to prevent gas leaks.