Inspect the crankcase ventilation hose(s) internally for obstructions or sludge buildup. Blockages must be removed to reduce the possibility of crankcase pressure buildup.
If a blockage is found, the crankcase ventilation hose(s) must be cleaned with a strong solution of detergent and water or replaced.
Dry the hose(s) with compressed air.
Check the crankcase ventilation hose(s) for other debris which could obstruct the hose(s).
Check the hose(s) for cracks and other damage.
Replace the crankcase ventilation hose(s) if any damage is found.
