PCV System: Maintenance

Every 12 months or 15,000 miles, clean internal part of hoses and regulating orifice in detergent oil and blow away foreign matter with compressed air. Check all hoses for cracks, fatigue and swelling; replace if defective.

Fig 1: Crankcase Ventilation System (I-Mark - Diesel)

Fig 2: Crankcase Ventilation System

Fig 3: Crankcase Ventilation System (Impulse)