Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) System
Purpose, Outline
-
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
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The intake manifold vacuum introduces blow-by gas to the intake manifold via the PCV valve and the ventilation hose.
System Diagram
Structure
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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:
Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include up to 6 air bags.
Please verify which kinds of air bags are equipped on your vehicle by locating the
“SRS AIRBAG” location indicators. These indicators are visible in the area where
the air bags are installed.
The air bags ar ...
Money-Saving Suggestions
How you operate your Mazda determines how far it will travel on a tank of fuel.
Use these suggestions to help save money on fuel and repairs.
• Avoid long warm-ups. Once the engine
runs smoothly, begin driving.
• Avoid fast starts.
• Keep the engine tuned. Follow the maintenance
sched ...
Rear Door Checker Removal/Installation
1. Fully close the rear door glass.
2. Disconnect the negative battery cable..
3. Remove the rear door trim..
4. Remove the rear door speaker..
5. Remove bolt.
6. Remove nuts.
7. Pull out the rear door checker from the rear speaker installation hole.
8. Install in the reverse ...
