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: Front Seat Outer Shield 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...

    Hyundai Sonata LF 2014-2019 Service Manual: Knock Sensor (KS) Description and Operation


    Description Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element...

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