: If the valve is stuck closed, air cannot escape the tank as you add fuel. This causes the gas pump nozzle to repeatedly click off before the tank is full.

If the canister close valve fails, it can lead to several noticeable issues:

: Secure the new unit, reattach all hoses and electrical connectors, and clear any trouble codes with an OBD2 scanner.

: A valve that is stuck open may allow fuel vapors to escape, leading to a strong gasoline smell around the rear of the vehicle.

: Any malfunction in the CCV will prevent the EVAP system from completing its self-tests, resulting in an automatic failure. DIY Replacement Guide

: It remains open during normal driving to allow the canister to breathe and circulate fresh air.

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