Turn the knob to the right to increase the fan speed and airflow. Turn the knob to the left to decrease fan speed and airflow.
Setting the fan speed control knob to the "0" position turns off the fan.
Hyundai Sonata LF 2014-2019 Service Manual: Cylinder Head Components and Components Location
Components
1. Cylinder head assembly2. MLA3. Retainer lock4. Retainer 5. Valve stem seal6. Valve spring7. Valve spring seat8. OCV (Oil Control Valve)9. Exhaust valve10. Intake valve11. Cylinder head gasket
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Hyundai Sonata LF 2014-2019 Service Manual: Cooling Fan Repair procedures
Removal and Installation
Cooling Fan Assembly
1.
Disconnect the battery terminals.
2.
Remove the under cover.
(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover")
3.
Disconnect the air duct(A).
4.
Disconnect the coolingfan connector(A).
5.
Disconnect the vacuum ...