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:
Rear Lateral Link Removal/Installation
1. Disconnect the rear stabilizer control link lower side nut..
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
4. Inspect the wheel alignment and adjust it if necessary..
1
Rear lateral link outer bolt
...
Controller Area Network (Can)
Outline
The DSC HU/CM sends and receives data to and from other modules via the CAN
system. Refer to MULTIPLEX COMMUNICATION SYSTEM for a detailed explanation of
the CAN system..
Data sent
Cruise control system-related information
DSC system-related information
...
Roof Molding Removal
1. Insert a tape-wrapped flathead screwdriver in the position shown in the figure.
2. Rotate a tape-wrapped flathead screwdriver in the direction of the arrow in
the order of (1), (2) shown in the figure and remove the roof molding from the front
T-stud.
3. Rotate the roof molding in th ...
