Hyundai Sonata LF: Evaporative Emission Control System / Fuel Filler Cap Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / 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...

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...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Heated Oxygen Sensor (HO2S) Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between the HO2S terminals 2 and 5 [B1/S1]. 4. Measure resistance between the HO2S terminals 3 and 4 [B1/S2]. 5. Check that the resistance is within the specification...

Hyundai Sonata LF 2014-2019 Service Manual: Rear Glass Defogger