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:
Fuel Filler Lid Opener And Lever Removal/Installation
Fuel-filler Lid Opener
1. Open the fuel-filler lid.
2. Remove the nut.
3. Remove the service hole cover on the trunk side trim.
4. While pressing the tabs of the stopper bracket in the direction of arrow (1)
shown in the figure, press it in the direction of arrow (2) to detach it fr ...
Rear Bumper Disassembly/Assembly
1. Disassemble in the order indicated in the table.
1
Screw
2
Reflector
3
Rear bumper face
2. Assemble in the reverse order of disassembly. ...
Turning the Engine Off
WARNING
Do not stop the engine while the vehicle is moving:
Stopping the engine while the vehicle is moving for any reason other than in
an emergency is dangerous.
Stopping the engine while the vehicle is moving will result in reduced braking
ability due to the loss of power braking, which co ...
