Hyundai Sonata: Crankcase Emission Control System / Repair procedures

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / Crankcase Emission Control System / Repair procedures

Inspection

1.	After disconnecting the vapor hose from the PCV valve, remove the PCV valve.

2.	Reconnect the PCV valve to the vapor hose.

Inspect the PCV vlave operation.

(1)	Run the engine at idle.

(2)	Put a finger on the open end of the PCV valve.

(3)	Make sure that intake manifold vaccum can be felt.

The plunger inside the PCV valve will move back and forth at vacuum.

4.	If the vacuum is not felt, clean or replace the vapor hose.

Schematic Diagrams

Schematic Diagram ...

Positive Crankcase Ventilation (PCV) Valve Description and Operation

Operation Principle ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: Scheduled Maintenance Services
Follow Normal Maintenance Schedule if the vehicle is usually operated where none of the following conditions apply. If any of the following conditions apply, you must follow the Maintenance Under Severe Usage Conditions. Repeated short distance driving. Driving in dusty conditions or sandy area ...

Hyundai Sonata LF 2014-2019 Service Manual: Idler Repair procedures
Removal and Installation 1. Remove the drive belt. (Refer to Timing System - "Dreve Belt") 2. Remove the idler (A). Tightening torque : 42.2 ~ 53.9 N.m (4.3 ~ 5.5 kgf.m, 31.1 ~ 39.8 lb-ft) 3. Install in the reverse order of removal. ...