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:
Electric Variable Valve Timing Actuator, Hydraulic Variable Valve Timing Actuator
Removal/Installation
WARNING:
A hot engine can cause severe burns. Turn off the engine and wait until it
is cool before servicing.
CAUTION:
Do not disassemble the electric variable valve timing actuator and hydraulic
variable valve timing actuator because they are precision units.
If ...
Antenna Feeder No.1 Removal/Installation
With audio system
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Side speaker grille (RH).
b. Tweeter (RH).
c. A-pillar trim.
d. Passenger-side front scuff plate.
e. Passenger-side front side trim.
f. Glove compartment.
g. Decoration panel.
h. Dashboa ...
General Procedures (Brake)
Wheel and Tire Installation
1. When installing the wheels and tires, tighten the wheel nuts in a criss-cross
pattern to the following tightening torque.
Tightening torque
108—147 N·m {12—14 Kgf·m, 80—108 ft·lbf}
Brake Lines Disconnection
1. If any brake line has been ...
