F 250 2WD Pickup V8-7.3L DSL (1990)
Fuel Filter: Service and Repair
REPLACING THE FILTER
Removal:
1.
Disconnect battery ground cables from both batteries.
NOTE: When the battery has been disconnected and reconnected on vehicles equipped with Electronic Engine Controls (EEC), some abnormal
drive symptoms may occur while the EEC processor relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to
relearn the strategy.
2.
Place a container under vehicle and drain fuel from fuel filter.
3.
Remove water drain tube from bottom of filter assembly.
4.
Unscrew water separator drain bowl and remove.
5.
Unscrew fuel filter element and discard.
Installation:
1.
Clean gasket surfaces of the fuel filter adapter to prevent contamination.
2.
Lightly coat filter sealing gaskets with clean diesel fuel.
NOTE: To avoid fuel contamination do not add fuel directly to new filter. Allow engine to draw fuel through filter.
3.
Screw new filter element onto filter base until seal contacts flange.
4.
Tighten filter another 180 to 300 degree turn.
5.
Screw on water separator drain bowl. Tighten another 180 to 300 degree turn.
6.
Install water drain tube.
7.
Clean up any spilled fuel from top of engine.
8.
Connect battery ground cables to both batteries.
9.
Run engine and check for fuel leaks.
DRAINING THE SEPARATOR
Fuel Filter/Fuel Heater/Water Separator
A WATER IN FUEL indicator lamp is provided on the instrument panel to alert the operator. The lamp should glow when the ignition switch is in the
ON position to indicate proper lamp and water sensor function. If the lamp glows continuously while the engine is running, the water must be drained
