How often should the vehicle's charcoal canister be replaced?

[GabrielleAnn]

The replacement interval for the vehicle's charcoal canister is: every 4 years or 60,000 kilometers. The charcoal canister is prone to clogging, which can prevent fuel vapors from escaping, leading to excessive pressure from exhaust gases in the fuel tank. Its primary function is to reduce emission pollution. During daily use, it is important to avoid impacts or strong vibrations on the charcoal canister, as these can shorten its lifespan. The charcoal canister has an adsorption function. When the vehicle is running or turned off, gasoline vapors from the fuel tank enter the upper part of the charcoal canister through the pipeline, while fresh air enters from the lower part. When the engine is turned off, the gasoline vapors mix with fresh air inside the canister and are stored there. When the engine is started, the electromagnetic valve of the fuel evaporation purification device, located between the charcoal canister and the intake manifold, opens, allowing the gasoline vapors in the charcoal canister to be drawn into the intake manifold for combustion.