Hyundai Sonata LF Quiz
Emission Control System

Fuel Tank Filler Cap Description and Operation

In this manual: Emission Control System
General Information — 9Engine Mechanical System — 90Engine Electrical System — 58Emission Control System — 24Engine Control System/Fuel System — 114Drive Shaft and Axle — 15Suspension System — 35Steering — 19Restraints — 50Brake System — 54Body (Interior and Exterior) — 213Body Electrical System — 241Heating, Ventilation, and Air Conditioning — 56DCT (Dual Clutch Transmission) System — 52
~1min read

Description

The ratchet tightening device on the threaded fuel tank cap reduces the possibility of incorrect installation, which would lead to a fuel filler seal failure. When the gasket on the fuel tank cap and the filler neck flanges contact each other, the ratchet produces a loud clicking sound, indicating that the seal is installed.
1. Cover
2. Torsion Spring
3. Retainer
4. Seal Gasket		 5. Spring
6. Plate Seal
7. Vacuum Valve
8. Spring

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A quick Hyundai Sonata LF quiz: every answer comes with an explanation and a link to the manual page.