Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
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Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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The PCV valve is open/closed by the intake manifold vacuum.
Construction
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The PCV valve is installed to the oil separator.
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The PCV valve consists of a spring and valve.
Operation
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When the valve is pulled by the intake manifold vacuum, blow-by gas flows to the intake manifold.
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Blow-by gas flow amount is adjusted by the spring according to the intake manifold vacuum.
Positive Crankcase Ventilation (PCV) Valve Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the intake manifold..
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
1
...
Purge Solenoid Valve Inspection
Airflow Inspection
1. Disconnect the negative battery cable..
2. Remove the purge solenoid valve..
3. Inspect airflow between the ports under the following conditions.
...
Other materials:
Drive Belt
Purpose, Function
The drive belt transmits rotation force of the crankshaft pulley to the pulley
for the auxiliary parts.
Construction
The drive belt is installed to the front of the engine.
A V-ribbed belt has been adopted for the drive belt.
The wat ...
Quick Release Connector (Emission System)
Purpose, Function
Serviceability has been improved by the easy disconnection/connection.
Construction
The following types of quick release connectors are used.
U.S.A. and CANADA
Except U.S.A and CANADA
Type A
An SST is not used with this type.
...
Airflow Mode Main Link Removal/Installation
Full-auto Air Conditioner
1. The airflow mode main link is installed to the airflow mode actuator. When
removing the airflow mode main link, refer to the airflow mode actuator removal/installation..
Manual Air Conditioner
1. Disconnect the negative battery cable..
2. Remove the glove compar ...
