Hyundai Sonata: Evaporative Emission Control System / 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 been set.

1. Cover
2. Torsion spring
3. Retainer
4. Gasket seal
5. Spring
6. Plate seal
7. Vacuum valve
8. Spring

Canister Repair procedures
Removal 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the fuel tank. (Refer to Engine Control / Fuel System - " Fuel Tank") 3. Disconnect th ...

Fuel Tank Air Filter Repair procedures
Replacement 1. Turn the ignition switch OFF and disconnect the negative (-) battery cable. 2. Lift the vehicle. 3. Remove the rear-left wheel & tire and house cover. 4. Disconnec ...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Repair procedures
On-vehicle Inpection     • First of all, check for DTCs. If a DTC is present, perform troubleshooting in accordance with the procedure for that DTC. (Refer to DTC guide)     • Check that the battery cables are connected to the correct termina ...

Hyundai Sonata LF 2014-2019 Service Manual: Rear Seat Cushion Cover Repair procedures
Replacement     • Put on gloves to protect your hands.     • When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage. • Us ...

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