Hyundai Sonata LF: Emission Control System / Crankcase Emission Control System
Schematic Diagrams
Repair procedures
| 1. |
After disconnecting the vapor hose from the PCV valve, remove the PCV valve. |
| 2. |
Reconnect the PCV valve to the vapor hose. |
| 3. |
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. |
Positive Crankcase Ventilation (PCV) Valve Description and Operation
Positive Crankcase Ventilation (PCV) Valve Repair procedures
| 1. |
Disconnect the PCV hose (A). |
| 2. |
Remove the PCV valve (B). 
|
| 1. |
Insert a thin stick (A) into the PCV valve (B) from the threaded side to check that the plunger moves. 
|
If the plunger does not move (PCV valve is clogged), clean or replace the valve.
|
|
| 1. |
Install in the reverse order of removal.
PCV Valve installation:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)
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Description and Operation
Description
Emissions Control System consists of three major systems.
•
Crankcase Emission Control System prevents blow-by gas from
releasing into the atmosphere...
Other information:
Airbag Disposal
Special tool required
Deployment tool 0957A-34100A
Before scrapping any airbags or side airbags (including those
installed in vehicle to be scrapped), the airbags or side airbags must
be deployed. If the vehicle is still within the warranty period, before
deploying the airbags or side airbags, the Technical Manager must give
approval and/or special instruction...
C..
General Information
