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Home >> Mazda >> 2000 >> B2500 SX, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Controls - System & Component Testing) >> Emission Systems & Sub-Systems >> Positive Crankcase Ventilation (PCV) >> System Inspection (Except MPV)

System Inspection (Except MPV)

WARNING: This page is about a different car, the 2000 Mazda Protege, 2000 Mazda Millenia, 2000 Mazda MX-5 Miata, 2000 Mazda MPV, and 2000 Mazda 626. However, it is still accessible from the selected car via links, so may be relevant.

Verify that engine coolant temperature is less than 68°F (20°C). Start engine and operate at idle. Remove Positive Crankcase Ventilation (PCV) valve, with hose attached, from valve cover. Block PCV valve opening and check for vacuum. If no vacuum is felt, check for collapsed or blocked PCV valve hose. Repair as necessary. If hose is okay, replace PCV valve.

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