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Mazda CX-5 Service & Repair Manual: Positive Crankcase Ventilation (PCV) Valve Inspection

Mazda CX-5 Service & Repair Manual / Engine / Emissions / 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 while the engine is idling.

NOTE:

3. Disconnect the negative battery cable..

4. Remove the intake manifold..

5. Remove the PCV valve and the oil separator as a single unit..

6. Verify that there is no airflow when pressure is applied to port B.


7. Verify that there is airflow when vacuum is applied to port B.

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 ...

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 ...

Other materials:

Tweeter Inspection
1. Disconnect the negative battery cable.. 2. Remove the side speaker grille.. 3. Remove the tweeter.. 4. Verify that the resistance between the tweeter terminals is as indicated in the table. If not as indicated in the table, replace the tweeter. Without Bose® With B ...

Airflow Mode Actuator Removal/Installation [Full Auto Air Conditioner]
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Dashboard under cover. b. Glove compartment. 3. Disconnect the airflow mode actuator connector. 4. Remove the screw. 5. Remove the airflow mode actuator. 6. Remove the airflow mode main link. 7. Remo ...

Brake
Brake System Foot Brake Your Mazda has power-assisted brakes that adjust automatically through normal use. Should power-assist fail, you can stop by applying greater force than normal to the brake pedal. But the distance required to stop will be greater than usual. WARNING Do not coast wi ...

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