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:
DRL (Daytime Running Light) System
Outline
The DRL system automatically switches the headlights to HI beams (50% dim)
or illuminates the DRL bulb when the ignition is switched ON (engine on), the
parking brake is released, and the shift lever is in a position other than P
(ATX).
The front body control module ( ...
Body And Accessories SST
49 L067 001
Reflector
49 L067 002
Tripod
49 L067 003
Plum-bob
49 L067 006
Plum-bob
—
—
...
Battery Removal/Installation [Skyactiv G 2.0]
1. Remove in the order indicated in the table.
2. Install in the reverse order of removal.
1
Negative battery cable
(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0].)
2
Positive battery cable
3
...
