Hyundai Sonata LF: Timing System / Timing Chain Cover Components and Components Location

Front Oil Seal Repair procedures

Removal and Installation 1. Crankshaft damper pulley. (Refer to Timing System - "Damper Pulley") 2. Remove the front oil seal.     Using the SST (09455-21200), reassemble the timing chain cover oil seal...

Timing Chain Cover Repair procedures

Removal     • Use fender covers to avoid damaging painted surfaces. • To avoid damage, unplug the wiring connectors carefully while holding the connector portion...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Crankshaft Position Sensor (CKPS) Repair procedures

Inspection 1. Check signal waveform of CKPS and CMPS using a GDS. Specification: Refer to “Waveform” Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the crankshaft position sensor connector (A) and remove the sensor (B) after removing the installation bolt...

Hyundai Sonata LF 2014-2019 Service Manual: CVVT & Camshaft 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...