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.
-
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:
Wheel Alignment Pre Inspection
1. Park the vehicle on level ground, in an unloaded condition*, with the wheels
straight forward.
*: Unloaded condition.....Fuel tank is full. Engine coolant and engine oil are
at specified level. Spare tire, jack and tools are in designated position.
2. Inspect the tire pressure.
...
Oil Pan
Purpose, Function
The engine oil required for lubrication in the engine accumulates in the
oil pan.
Construction
The oil pan is installed on the lower part of the cylinder block.
Silicone sealant with excellent sealing has been adopted for the oil pan
gask ...
Door Locks
WARNING
Always take all children and pets with you or leave a responsible person with
them:
Leaving a child or a pet unattended in a parked vehicle is dangerous. In hot
weather, temperatures inside a vehicle can become high enough to cause brain damage
or even death.
Do not leave the key in ...
