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Home >> Ford >> 1987 >> Cutaway 6.9 1 >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - 6.9L Diesel >> Maintenance >> Water Separator

Water Separator

Water separator should be drained every 5000 miles or when warning light illuminates. Diesel fuel can damage asphalt and painted surfaces. Always place a drain pan under water separator to collect fuel. To drain conditioner, use the following procedure:

  1. On pickups, stop vehicle and turn engine off. Open hood. Grasp pull ring and pull upward until it stops. Hold ring in this position for about 15 seconds or until water is completely drained. Release pull ring.
  2. On vans, stop vehicle and turn engine off. Raise plastic cover on drain handle bracket located on floor pan, to right of driver's seat. Grasp handle and pull firmly upward until it hits stop.
  3. Hold handle in this position for about 15 seconds or until water is completely drained. After water is drained, push handle in to close cover on drain handle bracket.
  4. Check water separator to verify draining has stopped. Water separator is located inside of driver's side frame rail, in line with front wheel.
  5. On all models, restart engine and check warning light. If warning light is still lit, fuel system needs to be checked or repaired. The only serviceable item on the separator is the water level sensor.