Hyundai Santa Fe: Crankcase Emission Control System / Positive Crankcase Ventilation (PCV) Valve. Description and operation
Hyundai Santa Fe (TM) 2019-2024 Service Manual / Emission Control System / Crankcase Emission Control System / 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 |
|
|||
Schematic diagrams
Schematic Diagram
1. PCV Valve
2. Breather hose
3. Air intake hose
4. Intake maifold
5. Air breather hose
6...
Positive Crankcase Ventilation (PCV) Valve. Repair procedures
Removal
1.
Remove the cylinder head cover.
(Refer to Engine Mechanical System - "Cylinder Head Cover")
Installation
1...
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Air bag - supplemental restraint system
1. Driver’s front air bag
2. Passenger’s front air bag
3. Side air bag
4. Curtain air bag
The vehicles are equipped with a Supplemental Air Bag System for the driver’s seat and front passenger’s seats.
The front air bags are designed to supplement the three-point seat belts. For these air bags to provide protection, the seat belts must be worn at all times when driving.
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