Finding it is the first step – look along the frame rails near the fuel tank, following the fuel lines. You'll likely need to get under the truck to see it clearly.
Replacing it requires some tools and caution:
Tools You'll Need:
* Wrench: The correct size to fit the fuel filter's retaining straps or clamps. This will vary.
* Jack and Jack Stands (strongly recommended): Working under the truck safely is crucial. Never work under a vehicle supported only by a jack.
* Rags or Shop Towels: To clean up any spilled fuel.
* Gloves: To protect your hands from fuel and potential dirt.
* Container: To catch the old fuel that will drain from the filter. A few quarts capacity is sufficient.
* New Fuel Filter: Make sure you purchase the correct filter for your specific Ranger's engine. The part number should be available from a parts store, using your VIN or engine details.
Replacement Procedure (General Steps):
1. Safety First: Disconnect the negative battery cable to prevent sparks. Jack up the truck and securely support it with jack stands. Work in a well-ventilated area.
2. Locate the Filter: Find the fuel filter as described above.
3. Relief Pressure: There's fuel pressure in the system. To relieve it, you can either carefully crack open the fuel line at the filter (with the rags ready) or, if your truck has a schrader valve on the fuel rail (like a tire valve), depress it to release pressure until you hear no more hissing. Exercise caution! Fuel is flammable.
4. Disconnect the Fuel Lines: Loosen the clamps (or nuts) holding the fuel lines to the filter. Have your container ready to catch the fuel that will drain out.
5. Remove the Filter: Once the lines are disconnected, carefully remove the filter. The retaining clips or straps may require some force, but avoid damaging the fuel lines.
6. Compare Old and New: Before installing the new filter, compare the direction of fuel flow (usually indicated by an arrow on the filter). Ensure the new filter is oriented the same way as the old one.
7. Install the New Filter: Install the new filter, ensuring it's securely fastened.
8. Reconnect the Fuel Lines: Carefully reconnect the fuel lines, making sure the clamps are tight to prevent leaks.
9. Lower the Truck: Carefully lower the truck using the jack.
10. Reconnect Battery: Reconnect the negative battery cable.
11. Check for Leaks: Start the engine and check for any fuel leaks around the filter and fuel lines. Let the engine run for a few minutes to ensure the filter is properly primed.
Important Considerations:
* Fuel is Flammable: Work in a well-ventilated area, away from open flames or sparks.
* Fuel is Hazardous: Dispose of old fuel properly, following local regulations.
* If Unsure, Seek Professional Help: If you're uncomfortable performing this task, take your vehicle to a qualified mechanic.
This procedure is a general guide. The exact steps may vary slightly depending on your specific vehicle. Always consult a repair manual specific to your 1985 Ford Ranger for the most accurate and detailed instructions. A Chilton's or Haynes repair manual would be helpful.
