Mazda 3 manuals

Mazda 3 Service Manual: Positive Crankcase Ventilation (PCV) Valve Inspection [Mzr 2.0, Mzr 2.5]

Mazda 3 Service Manual / Engine / Emissions / Positive Crankcase Ventilation (PCV) Valve Inspection [Mzr 2.0, Mzr 2.5]

Airflow Inspection

1. Disconnect the section (A) of the 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. If it can be verified that vacuum occurs in the ventilation hose, the positive crankcase ventilation (PCV valve) system is determined to be normal.

4. Remove the battery cover..

5. Disconnect the negative battery cable..

6. Remove the intake manifold and the fuel distributor component as a single unit..

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

8. Verify that there is no airflow when pressure is applied to port A.


9. Verify that there is airflow when vacuum is applied to port A.

EGR Valve Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Drain the engine coolant from the radiator.. 4. Remove the air cleaner and the air hose as a single unit.. 5. Remove ...

Positive Crankcase Ventilation (PCV) Valve Removal/Installation [Mzr 2.0, Mzr 2.5]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the intake manifold and the fuel distributor component as a single unit.. 4. Remove in the order indicated in ...

Other materials:

Transaxle Oil Replacement [A26 M R]
1. Park the vehicle on level ground. 2. Remove the aerodynamic under cover No.2.. 3. Remove the drain plug and gasket. 4. Drain the oil into a suitable container. 5. Install a new gasket and the drain plug. Tightening torque 28—51 N·m {2.9—5.2 kgf·m, 21—37 ft·lbf} 6. Remo ...

How to use iPod mode (Type A)
An iPod may not be compatible depending on the model or OS version. In this case, an error message is displayed. NOTE The iPod functions on the iPod cannot be operated while it is connected to the unit because the unit controls the iPod functions. Playback Switch the ignition to ACC ...

Sunlight/Temperature Sensor
The climate control system measures inside and outside temperatures, and sunlight. It then sets temperatures inside the passenger compartment accordingly. CAUTION Do not obstruct either sensor, otherwise the climate control system will not operate properly. ...

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