Hyundai Sonata: Evaporative Emission Control System / Fuel Tank Air Filter Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / Evaporative Emission Control System / 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.	Disconnect the canister close valve connector (A).

5.	Disconnect the vapor hose (B).

6.	Remove installation bolts (A) and then remove the fuel tank air filter.

7.	Release the lever (A), and then separate the canister close valve (B) from the fuel tank air filter (C) after rotating it in the direction of the arrow in the figure.

8.	Install a new fuel tank air filter.

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 ...

Exhaust Emission Control System

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Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: System malfunction
When the "Check Driver Attention Alert" warning message appears, the system is not working properly. In this case, we recommend you to have the vehicle inspected by an authorized HYUNDAI dealer. WARNING The Driver Attention Alert system is not a substitute for safe driving practices, but a co ...

Hyundai Sonata LF 2014-2019 Service Manual: Description and Operation
Description Burglar Alarm State [B/A State] B/A StateDescriptionDISARM 1. In "DISARM" state, no vehicle start inhibition. So, when door, hood, or Tailgate is opened, there is no alarm sound and flashing. 2. If the battery is disconnected while the state is not "ARM/ARMWAIT/ALARM/REAR ...