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:

Manual Transaxle Shift Mechanism Removal/Installation [C66 M R]
1. Remove the battery cover.. 2. Disconnect the negative battery cable.. 3. Remove the shift lever. a. Remove the upper panel.. b. Remove the shift lever knob. c. Remove the shift panel.. d. Remove the side wall.. e. Remove the console.. f. Detach the clip as shown in the figure. ...

Antenna Feeder No.5 Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Front scuff plate (RH). b. Front side trim (RH). c. Rear scuff plate (RH). d. B-pillar lower trim (RH). e. Rear seat cushion. f. Tire house trim (RH). 3. Partially peel back the floor covering. 4. Disconne ...

Front Door Hinge Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Front bumper. b. Front combination light. c. Front fender molding. d. Side step molding. e. Front fender panel. f. Front door. 3. Remove in the order indicated in the table. 1 B ...

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