F 250 2WD Pickup V8-5.4L CNG VIN M (1999)
Fuel/Water Separator: Service and Repair
Draining
COALESCER/FILTER
1. Perform the fuel line venting procedure. See: Fuel Filter/Fuel Pressure Release/Service and Repair
2. Place a container under the coalescer/filter assembly.
3. Slowly loosen the coalescer/filter assembly drain plug, to vent the system of any residual fuel pressure.
NOTE: Hold the coalescer body with a wrench on the flats, to prevent loosening of the filter housing.
4. Remove the coalescer/filter assembly drain plug and allow all liquid to drain.
5. Install the coalescer/filter assembly drain plug and tighten to specifications.
6. Perform the fuel system leak test procedure.
