Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) System
Purpose, Outline
-
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
-
The intake manifold vacuum introduces blow-by gas to the intake manifold via the PCV valve and the ventilation hose.
System Diagram
Structure
-
The positive crankcase ventilation system consists of the following parts:
|
Part name |
Reference |
|
PCV valve |
(See POSITIVE CRANKCASE VENTILATION (PCV) VALVE [SKYACTIV-G 2.0].) |
|
Ventilation hose |
? |
Exhaust Gas Purification System
Purpose, Outline
Purifies contaminants (HC, CO, NOx) in the exhaust gas by utilizing the chemical
reactions of the three-way catalytic converter.
System Diagram
Structure
T ...
Positive Crankcase Ventilation (PCV) Valve Inspection
Airflow Inspection
1. Disconnect the section (A) of ventilation hose shown in the figure.
2. Start the engine and verify that vacuum is applied to the end of the disconnected
ventilation hose ...
Other materials:
Automatic Transaxle Fluid (ATF) Replacement [Fw6 A EL, Fw6 Ax EL]
WARNING:
Do not perform the servicing while the ATF is hot. Otherwise, it could cause
severe burns or serious injury.
1. Remove the front under cover No.2..
2. Remove the dipstick securing bolt.
3. Remove the dipstick.
4. Remove the drain plug and washer, and drain the ATF ...
Seat
Outline
Front seat
A manual seat or power seat has been adopted on the driver's seat.
A seat warmer system has been adopted on the front seats. (with seat warmer
system)
A manual seat has been adopted on the front passenger's seat.
A side air bag module is ...
Caliper (Rear) Disassembly/Assembly
1. Disassemble in the order indicated in the table.
1
Bleeder cap
2
Bleeder screw
3
Piston
(See Piston Disassembly Note.)
(See Dust Seal, Piston Assembly Note.)
4
Dust seal
(See ...
