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
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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:
Push Button Start Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the meter hood..
3. While pressing the push button start tab in the direction of the arrow (1)
shown in the figure, push out the push button start in the direction of the arrow
(2) shown in the figure to detach the push button start tab fr ...
Personalization Features
The following systems can be customized.
When performing a customized setting, refer to the referenced section for
the detailed setting procedure.
Security And Locks
NOTE:
There are two types of customization procedures; one using the M-MDS and
the other using the ...
Rear Fender Panel Removal [Panel Replacement]
Symbol Mark
Removal Procedure
CAUTION:
Avoid cutting with a blowtorch or similar tools as the insulator (shaded
area) is flammable.
1. Rough cut the 3 locations indicated by (A) shown in the figure.
2. Drill the 90 locations indicated by (B) shown in the figure.
...
