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:
Refrigerant Line Removal/Installation
1. Disconnect the negative battery cable..
2. Discharge the refrigerant..
3. Disconnect the engine ground.
4. Disconnect the refrigerant pressure sensor connector.
5. Remove in the order indicated in the table. Do not allow compressor oil to
spill.
CAUTION:
If moisture or for ...
Door Adjustment
1. Measure the gap and height difference between the door and the body.
2. Loosen the door hinge installation bolts and adjust the door.
Standard clearance
a: 2.8?3.8 mm {0.12?0.14 in}
b: -1.0?1.0 mm {-0.039?0.039 in}
c: 2.5?4.5 mm {0.10?0.17 in}
d: -1.0?1.0 m ...
Front Outer Handle Removal/Installation
1. Perform the front door glass preparation..
2. Disconnect the negative battery cable..
3. Remove the following parts:
a. Inner garnish.
b. Front door trim.
c. Front door glass.
d. Front door module panel.
e. Front door key cylinder.
4. Disconnect the keyless antenna connector (With ...
