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:
Global Positioning System (Gps) Antenna
Purpose, Function
The GPS antenna receives signals sent from GPS satellites and sends them
to the car navigation unit.
NOTE:
GPS (Global Positioning System) was developed by the Pentagon (U.S.A.) as
an object locating system using satellites. The GPS antenna receives signa ...
Exhaust System
Purpose, Outline
A 4-2-1 exhaust system has been adopted which reduces residual gas in the
cylinders using the scavenging effect and contributes to a high compression
ratio.
The loop structure of the exhaust pipes for the 4-2-1 system takes up less
space.
Structural Vie ...
Climate Control Unit Removal/Installation [Manual Air Conditioner]
Removal
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Shift lever knob (MTX).
b. Glove compartment.
c. Front console box.
d. Shift panel.
e. Upper panel.
f. Rear console.
g. Side wall.
h. Decoration panel.
i. Front console.
3. Press the tab down, ...
