Mazda 3 manuals

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

Mazda 3 Service Manual / Engine / Emissions / 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 the table.



1

Oil separator

2

Retainer

(See Retainer Removal Note.)

(See Retainer Installation Note.)

3

PCV valve


5. Install in the reverse order of removal.

Retainer Removal Note

CAUTION:

1. Insert a flat blade screwdriver with its tip wrapped in a cloth into the gap between the retainer and the oil separator as shown in the figure.


2. Spread the side surface of the retainer outward to dismount it with attention to the tab.

Retainer Installation Note

CAUTION:

1. Make sure that the retainer alignment mark is directed as shown in the left diagram before installing the retainer to the oil separator.


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 ...

Purge Solenoid Valve Inspection [Mzr 2.0, Mzr 2.5]
Airflow Inspection 1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the purge solenoid valve.. 4. Inspect airflow between the ports under the following conditi ...

Other materials:

Camshaft Position (CMP) Sensor Removal/Installation [Mzr 2.0, Mzr 2.5]
CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfunction resulting from fluctuation in magnetic flux and cause a deterioration in engine control. ...

Recommendations for Shifting (for Vehicles without Gear Shift Indication)
Upshifting For normal acceleration, Mazda recommends these shift points: (U.S.A. and Canada) For cruising, Mazda recommends these shift points: (U.S.A. and Canada) Downshifting When you must slow down in heavy traffic or on a steep upgrade , downshift before the engine starts to ov ...

Door Lock Switch Inspection
1. Disconnect the negative battery cable.. 2. Remove the inner garnish.. 3. Remove the front door trim.. 4. Remove the front inner handle.. 5. Inspect for continuity between the door lock switch terminals using an ohmmeter. If not as indicated in the table, replace the door lock ...

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