mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations|Page 2782
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Positive Crankcase Ventilation Valve: Testing and Inspection

Checking PCV Valve

1.

Warm up the engine to the normal operating temperature and run it at idle.

2.

Disconnect the PCV valve together with the ventilation hose from the cylinder head cover.

3.

Block the valve opening and check that vacuum is felt. Replace the valve, if necessary.

Sensors and Switches - Emission Control Systems > < Positive Crankcase Ventilation Valve|Locations|Page 2782