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:
Blind Spot Monitoring (BSM) System
Blind Spot Monitoring (BSM) System
The Blind Spot Monitoring (BSM) system is designed to assist the driver by monitoring
blind spots on both sides of the vehicle to the rear in certain situations such
as when changing lanes on roads and freeways.
The BSM system monitors the detection areas on ...
Jacking Positions, Vehicle Lift (2 Supports) And Safety Stand (Rigid Rack) Positions
Jacking Positions
WARNING:
Improperly jacking a vehicle is dangerous. The vehicle can slip off the jack
and cause serious injury. Use only the correct front and rear jacking points
and block the wheels.
CAUTION:
Use safety stands to support the vehicle after it has been ...
Cowl Upper Plate Removal [Panel Replacement]
Symbol Mark
Removal Procedure
1. Drill the 9 locations indicated by (A) shown in the figure.
2. Drill the 2 locations by (B) from the front wheel housing side shown in the
figure.
3. Drill the 2 locations indicated by (C) from the inside shown in the figure.
4. Remove the cowl upp ...
