Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) System
Purpose, Outline
-
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
-
The intake manifold vacuum introduces blow-by gas to the intake manifold via the PCV valve and the ventilation hose.
System Diagram
Structure
-
The positive crankcase ventilation system consists of the following parts:
|
Part name |
Reference |
|
PCV valve |
(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE [SKYACTIV-G 2.0].) |
|
Ventilation hose |
? |
Exhaust Gas Purification System
Purpose, Outline
Purifies contaminants (HC, CO, NOx) in the exhaust gas by utilizing the chemical
reactions of the three-way catalytic converter.
System Diagram
Structure
T ...
Positive Crankcase Ventilation (PCV) Valve Inspection
Airflow Inspection
1. Disconnect the section (A) of ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected
ventilation hose ...
Other materials:
Power Seat System
Outline
The power seat system drives the electric motor, operates the front seat
safely, and changes the driving posture to suit the occupant by operating the
power seat switch.
8 way power seats or 6 way power seats have been adopted on the driver's
seat.
Function
...
Oil Seal (Coupling Component) Replacement
1. Drain the differential oil into a container.
2. Remove the coupling component..
3. Remove the oil seal from the differential carrier using a screwdriver or similar
tool.
4. Apply differential oil to the new oil seal lip.
5. Install the new oil seal to the differential carrier using the ...
Airflow Mode Control [Full Auto Air Conditioner]
Purpose
The airflow mode control changes the airflow mode according to the vehicle
environment.
Function
The airflow mode control drives the airflow mode actuator according to the
mode switch, defroster switch, and the vehicle environment and switches the
position of the ...
