How To Drain Water Out Of Diesel Fuel Filter

Place the fuel in a clear clean glass container and allow it to sit in a dark place for 24 hours.

How to drain water out of diesel fuel filter. Try to position or hold an old jar under the small drain plug or tap which is actually called a petcock. Locate and disconnect the water in fuel sensor electrical connector. Although a few water separators are self cleaning most need to be manually drained. How to drain water out of fuel filter mercedes benz sprinter 2017 3 0 diesel.

Close the drain valve and remove the fuel hose. Determine whether there is water in the diesel fuel. Turn the valve nut with a pair of pliers if it will not turn by hand. Wipe any spilt water from the area around the fuel filter with a rag.

Turn the nut located on the valve counterclockwise to start draining the water from the fuel filter. Turn the valve nut clockwise to close the valve when all water has drained from the fuel filter. After you loosen the plug or tap on the filter the fuel and water should begin to flow out steadily. Open the bleed screw at the top of the fuel filter housing then drain the water separator into a suitable container and properly dispose of the fuel.

Diesel is lighter than water so if there is water in the fuel it will settle to the bottom of the jar. The petcock is usually fitted to the fuel filter or the collection chamber of the fuel separator.