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:

Brake/Taillight Bulb Removal/Installation
4SD 1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Trunk mat. b. Trunk board. c. Trunk end trim. 3. Partially peel back the trunk side trim.. 4. Remove in the order indicated in the table. 1 Connector 2 ...

Front Combination Light Removal/Installation
WARNING: Incorrect servicing of the discharge headlights could result in electrical shock. Before servicing the discharge headlights, always refer to the discharge headlight service warnings.. 1. Disconnect the negative battery cable.. 2. Remove the front bumper.. 3. Disconne ...

Child Restraint Seat Anchor Removal/Installation
4SD 1. Remove the cover. 2. Remove the bolt and child-restraint seat anchor. 3. Install in the reverse order of removal. 5HB 1. Remove the trunk end trim.. 2. Remove the bolt and child-restraint seat anchor. 3. Install in the reverse order of removal. ...

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