Hyundai Sonata LF: General Information

Hyundai Sonata LF 2014-2019 Service Manual

Service Manual for seventh generation Hyundai Sonata, model years 2014–2019. The Sonata LF is the first model to utilize Hyundai Motor's third-generation vehicle platform...

Important Safety Notice

General Information Proper service methods and repair procedures are essential for safe, reliable operation of all motor vehicles as well as personal safety of the operator...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: CVVT Oil Control Valve (OCV) Description and Operation

Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load. By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work...

Hyundai Sonata LF 2014-2019 Service Manual: Intake Actuator Repair procedures

Inspection 1. Turn the ignition switch OFF. 2. Disconnect the intake actuator connector. 3. Verify that the intake actuator operates to the fresh position when connecting 12V to terminal 3 and grounding terminal 4. Verify that the intake actuator operates to the recirculation position when connected in reverse...