2008 Dodge Ram 2500 Pickup Owner Manual - Page 459
2008 Dodge Ram 2500 Pickup Manual
Page 459 highlights
MAINTAINING YOUR VEHICLE 457 To minimize the possibility of catalyst damage: • Do not shut off the engine or interrupt the ignition when the transmission is in gear and the vehicle is in motion. • Do not try to start the engine by pushing or towing the vehicle. • Do not idle the engine with any spark plug wires disconnected or removed, such as when diagnostic testing, or for prolonged periods during very rough idling or malfunctioning operating conditions. Emission-Related Components Positive Crankcase Valve (PCV) 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. 7