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:
Shift Lever [C66 M R]
Purpose, Function
The shift lever operates the MTX via the control cable.
Construction
Shift lever
The shift lever is designed to prevent improper shifting to 1st gear and
reverse.
Operation
1 GR shifting
A guide plate, attached to the shift lever assembly, ...
Relay Inspection
Relay Type
Connector type
Part name
Type A
TNS relay
A/C relay
Headlight HI relay
Headlight LO relay
Headlight LO relay (LH)
Horn relay
ACC rel ...
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) ...