96 Maintenance Flushing Cooling System, D12D Draining Cooling System DANGER Before working on or inspecting a vehicle, set the parking brakes, place the transmission in neutral and block the wheels. Failure to do so can result in unexpected vehicle movement and can cause serious personal injury or death. WARNING DO NOT remove the cap to the coolant surge tank while the engine and radiator are still hot and under pressure. Scalding fluid and/or steam may be blown out under pressure if the cap is taken off too soon. W2003947 WARNING Hot engine. Keep yourself clear of all hot engine parts and/or fluids. A hot engine and/or fluid can cause serious burns. 1 Remove system fill cap.
2 Open drain cocks located in the bottom of the radiator or on the bottom radiator hose and on the block (You may have to use special tool 9996049 for quick-connect fittings). 3 Open the drain valve on the air compressor. Note: Always dispose of coolant according to Federal or local regulations. Take all used coolant to a recycling or waste collection center. Special tool 9996049 W0001746