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:
Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle inspections
at the indicated intervals to ensure safe and dependable operation.
Bring any problem to the attention of an Authorized Mazda Dealer or qualified
service technician as soon as possible.
When Refueling
• Brake ...
Front Brake (Disc)
Purpose/Function
Large diameter, ventilated disc type front brakes with a 297 mm {11.7 in}
diameter and 28 mm {1.1 in} thickness have been adopted, improving braking force
and fade resistance.
Construction
Operation
When brake fluid is applied, the piston equipped on o ...
Parking Brake Lever Removal/Installation
1. Remove the front console box..
2. Remove the shift lever knob. (MTX).
3. Remove the shift panel..
4. Remove the upper panel..
5. Remove in the order indicated in the table.
6. Install in the reverse order of removal.
7. After installation, inspect the parking brake lever stroke..
...
