Hyundai Sonata LF 2014-2019 Service Manual: 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.
3.
Install in the reverse order of removal. ...
Hyundai Sonata LF 2014-2019 Service Manual: Knock Sensor (KS) Description and Operation
Description
Knocking is a phenomenon characterized by undesirable
vibration and noise and can cause engine damage. Knock Sensor (KS) is
installed on the cylinder block and senses engine knocking.
When knocking occurs, the vibration from the cylinder block
is applied as pressure to the piez ...