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:
Side Air Bag Module [Standard Deployment Control System]
Purpose
When a side air bag module receives an impact from a lateral collision, the
operation (deployment) of the air bag mediates the impact to the chest, stomach,
and waist of the driver and front passenger.
Function
When a side air bag module receives an impact from a la ...
Liftgate Side Trim Removal/Installation
1. Remove the liftgate upper trim..
2. Remove the fastener A.
3. Take the shaded area shown in the figure, and pull the liftgate side trim
in the direction of the arrow (1) while detaching clips B.
4. Take the shaded area shown in the figure, detach tabs C while pulling the
liftgate si ...
Cruise Main Indicator Light (Amber)
Purpose/Function
Illuminates while the cruise control system is in standby mode to inform
the driver that the cruise control system is on standby.
Construction
Built into the instrument cluster.
Operation
Illuminates while the cruise control system is on sta ...
