Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) System
Purpose, Outline
-
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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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:
Panel Light Control Indicator Alarm
Purpose
The panel light control indicator alarm notifies the driver that the panel
light brightness is either at maximum or minimum.
Function
If the panel light control switch is in the maximum rotation position right
or left when the TNS switch ON signal (TNS and headlight ...
Front Buckle Removal/Installation
Driver-side
1. Disconnect the negative battery cable and wait for 1 min or more..
2. Remove the front seat..
3. Disconnect the front buckle connector.
4. Remove the bolt.
5. Remove the front buckle.
6. Install in the reverse order of removal.
Passenger-side (with buckle switch) ...
Rear Brake (Disc)
Purpose/Function
Large diameter, solid-disc type front brakes with a 303 mm {11.9 in} diameter
and 10 mm {0.39 in} thickness have been adopted, improving braking force and
fade resistance.
Construction
Operation
When brake fluid is applied, the piston equipped on one s ...
