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Home >> Mazda >> 2005 >> B3000 Base, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Symptom Troubleshooting [Engine) >> Electronic Engine Control (EEC) System >> Positive Crankcase Ventilation System >> Overview

Positive Crankcase Ventilation System: Overview

The positive crankcase ventilation (PCV) System cycles crankcase gases back through the engine where they are burned. The PCV valve regulates the amount of ventilating air and blow-by gas to the intake manifold and prevents backfire from traveling into the crankcase. The PCV valve should be mounted in a vertical position.

CAUTION:
  • Do not remove the PCV system from the engine. Removal of the PCV system will adversely affect the fuel economy and engine ventilation and result in shorter engine life.
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