Hyundai Elantra: 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 seals 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

On-board Refueling Vapor Recovery (ORVR) valve Repair procedures
Removal 1. Turn the ignition switch OFF, and then remove battery (-) cable. 2. Remove the fuel pump. (Refer to Fuel System - "Fuel Pump") 3. Remove the ORVR (A) after releasing hooks (B) ...

Fuel Tank Air Filter Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the battery negative (-) terminal. 2. Remove the canister assembly. (Refer to Emission Control System - "Canister") 3. Remove the inst ...

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Recommended Cold Tire Inflation Pressures
All tire pressures (including the spare) should be checked when the tires are cold. "Cold tires" means the vehicle has not been driven for at least three hours or driven less than one mile (1.6 km). Warm tires normally exceed recommended cold tire pressures by 4 to 6 psi (28 to 41 k ...

Hyundai Elantra AD (2016-2020) Service Manual: Sunroof Motor Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the roof trim. (Refer to Body - "Roof Trim") 3. Disconnect the sunroof motor (A) connector. 4. Ground the terminals as below table, and check that the sunroof unit operates.     • When ins ...

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