2004 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 334

334 MAINTAINING YOUR VEHICLE Draining Fuel/Water Separator Filter Drain a small amount from the fuel/water separator filter periodically or when the WATER IN FUEL indicator lamp is on. Pull outward on the drain valve lever, located on the side of the filter, and allow any accumulated water to drain. Hold the drain valve open until all water and contaminants have been removed. Close the drain release valve, by returning it to the inward position, when clean fuel is visible. NOTE: The Fuel / Water separator drain valve is identified by its yellow handle and is located on the inboard side of the fuel filter housing. If more than a couple ounces of fuel has been drained, follow the directions below for "Priming if the engine has run out of fuel." CAUTION! Do not drain the fuel/water separator filter when the engine is running.