Hyundai Sonata LF: 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...

Exhaust Emission Control System

Description and Operation Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Thermostat Troubleshooting

Troubleshooting SymptomsPossible CausesRemedyCoolant leakage • From the thermostat gasket Check the mounting bolts • Check the torque of the mounting bolts • Retighten the bolts and check leakage again. Check the gasket for damage • Check gasket or seal for damage • Replace gaskets and reuse the thermostat...

Hyundai Sonata LF 2014-2019 Service Manual: General Safety Information and Caution