2005 Dodge Ram 2500 Pickup Owner Manual - Page 361

MAINTAINING YOUR VEHICLE 361 Emission-Related Components Positive Crankcase (PCV) Valve Proper operation of the crankcase ventilation system requires that the PCV valve be free of sticking or plugging from deposits. Deposits can accumulate in the PCV valve and passages with increasing mileage. Have the PCV valve, hoses, and passages checked for proper operation at the intervals specified. If the valve is plugged or sticking, replace with a new valve- do not attempt to clean the old PCV valve! Check the ventilation hoses for indications of damage, weepage or plugging with deposits. Replace if necessary. Maintenance Free Battery The top of the maintenance free battery is permanently sealed. You will never have to add water, nor is periodic maintenance required. To determine the battery charge, check the battery test indicator (if equipped) on top of the battery. If the test indicator (if equipped) appears light or yellow, replace the battery. 7