Water Separator Draining

Fuel Filter/Fuel Heater/Water Separator:

1. Stop vehicle and shut off engine.

NOTE: To avoid engine stall-out caused by air entering the fuel system, do not drain fuel/water separator while engine is running.

2. Place an appropriate container under the manual drain valve tube at base of water separator drain bowl.
3. Manually open drain valve by unscrewing. Allow drain valve to remain open approximately 15 seconds or until clear (water-free) diesel fuel flows from drain tube. Close drain valve by threading into water separator drain bowl until liquid no longer drains from drain tube.

CAUTION: Ensure that drain valve is fully and securely closed.

4. Re-start the engine and make sure that water in fuel lamp does not glow.