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:
Liftgate Hinge Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Rear scuff plate.
b. Trunk end trim.
c. Trunk side trim.
d. C-pillar trim.
e. D-pillar trim.
f. Liftgate.
3. Remove fasteners.
4. While partially peeling back the rear part of the headliner, remove nut ...
Repairable Range Of Polypropylene Bumpers [Plastic Body Parts]
The three types of damaged bumpers shown below are considered repairable. Although
a bumper which has been damaged greater than this could also be repaired, it should
be replaced with a new one because such repair would detract from the looks and
quality of the bumper. In addition, such repair ...
Blower Unit Disassembly/Assembly
CAUTION:
Apply only the specified grease to the link. Otherwise abnormal noise or
improper operation may result.
1. Disassemble in the order indicated in the table.
1
Air filter
2
Harness
3
Blower ...
