Hyundai Sonata: Fuel Filler Cap. Description and Operation - Evaporative Emission Control System - Emission Control SystemHyundai Sonata: Fuel Filler Cap. Description and Operation

Description

A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.


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    Description and Operation
    Description The Evaporative Emission Control System prevents fuel vapor stored in fuel tank from vaporizing into the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes t ...