Hyundai Elantra: Fuel Filler Cap. Description and Operation - Evaporative Emission Control System - Emission Control System - Hyundai Elantra HD 2006Ц2010 Service ManualHyundai Elantra: Fuel Filler Cap. Description and Operation

Description

A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which would seal 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 beenset.