Hyundai Santa Fe (TM): Crankcase Emission Control System
Schematic diagrams
Schematic Diagram |
1. PCV Valve 2. Breather hose 3. Air intake hose |
4. Intake maifold 5. Air breather hose 6. Cylinder block |
Positive Crankcase Ventilation (PCV) Valve. Description and operation
Description |
Pressure Regulating Valve (PRV) is installed to prevent the over pressure of
combustion gas through the piston ring and onto the crankcase.
Operation Principle |
Engine Condition |
Stop |
Idle or Deceleration |
Normal operating condition |
Accelerating in the high load area |
Intake manifold pressure |
0 |
High |
Appropriate |
Low |
PRV (Diaphragm) |
Full open |
A little open |
Appropriate open |
Considerable open |
Amount of blow-by gas |
0 |
A little |
Middle |
A lot |
Diaphragm component part |
|
Positive Crankcase Ventilation (PCV) Valve. Repair procedures
Removal |
1. |
Remove the cylinder head cover.
(Refer to Engine Mechanical System - "Cylinder Head Cover")
|
Installation |
1. |
Install in the reverse order of removal.
|
Crankcase Check Valve. Repair procedures
Removal and Installation |
|
1. |
Disconnect the battery (-) terminal.
|
2. |
Remove the engine room under cover.
(Refer to Engine And Transaxle Assembly - "Engine Room Under Cover")
|
3. |
Remove the drive belt.
(Refer to Drive Belt System - "Drive Belt")
|
4. |
Remove the compressor mounting bolts.
(Refer to Heating, Ventilation and Air Conditioning - "Compressor")
|
5. |
Disconnect the crankcase check valve hose (A) and then remove the crankcase
check valve (B).
|
Schematic diagrams
Schematic Diagram ...See also:
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