Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
-
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
-
The PCV valve is open/closed by the intake manifold vacuum.
Construction
-
The PCV valve is installed to the oil separator.
-
The PCV valve consists of a spring and valve.
Operation
-
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.
...
Clock Inspection
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Shift lever knob (MTX).
b. Front console box.
c. Shift panel.
d. Upper panel.
e. Rear console.
f. Side wall.
g. Decoration panel.
h. Front console.
i. Glove compartment.
j. Climate control unit.
3. C ...
Vanity Mirror Illumination Bulb Removal/Installation
1. Disconnect the negative battery cable..
2. Insert a tape-wrapped flathead screwdriver into the service hole in the position
shown in the figure.
3. Move a flathead screwdriver in the direction of the arrow (1) shown in the
figure and detach the lens tab and sunvisor.
4. Detach a ...
