*Tools and Materials Needed*:
- New fuel filter (Motorcraft FD-4615 or equivalent)
- Fuel filter wrench (optional)
- Drain pan
- Rags
- Safety glasses
Procedure:
1. Park your truck in a level spot and turn off the engine. Allow the engine to cool down completely.
2. Engage the parking brake.
3. Locate the fuel filter. On the 1988 Ford F-250, the fuel filter is located on the driver's side of the engine, near the fuel tank.
4. Place the drain pan under the fuel filter.
5. Use the fuel filter wrench to loosen the fuel filter housing. If you don't have a fuel filter wrench, you can use a pair of pliers. Be careful not to drop the fuel filter into the drain pan.
6. Remove the fuel filter from the housing. Allow the fuel to drain into the drain pan.
7. Inspect the old fuel filter for dirt and debris. If the fuel filter is dirty, it's time to replace it.
8. Insert the new fuel filter into the housing. Make sure that the filter is seated properly in the housing.
9. Tighten the fuel filter housing until it is snug.
10. Start the engine and check for leaks. If there are no leaks, you're done!
