Hyundai Sonata: Fuel Filler Cap. Description and Operation - Evaporative Emission Control System - Emission Control System - Hyundai Sonata YF 2011-2018 Service ManualHyundai 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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