Water-In-Fuel Warning Light
- Fuel manager/filter should be drained every 5000 miles, or when WATER-IN-FUEL warning light comes on. Diesel fuel can damage asphalt and painted surfaces. Always place a drain pan under filter drain hose to collect fuel.
- Stop vehicle and turn engine off. Apply parking brake. Open drain valve. Start and allow engine to idle for 2 minutes or until clear fuel is observed. Turn engine off and close drain valve.
- If WATER-IN-FUEL warning light comes on after fuel manager/filter is purged of water, remove water sensor and wipe tip of sensor clean. Reinstall water sensor. If WATER-IN-FUEL warning light remains on, replace water sensor.