Here's a general guide. Specific locations and procedures might vary slightly depending on the engine (4.0L SOHC V6 or 4.6L SOHC V8). Consult your owner's manual for precise diagrams and instructions specific to your vehicle. This is just a general outline:
Tools You'll Need:
* Wrench(es): Likely a combination of 10mm, 13mm, and possibly others depending on your specific filter setup.
* Fuel Line Disconnect Tool: This is HIGHLY recommended to avoid damaging the fuel lines. It's a specialized tool that helps separate the quick-connect fittings.
* Jack and Jack Stands (or ramps): For easier access, especially to the underside of the vehicle. Never work under a vehicle supported only by a jack.
* Container for Fuel: To collect the remaining fuel in the lines. Use a clean, sealable container. Gasoline is dangerous; handle with care.
* Rags or Shop Towels: To clean up any spills.
* New Fuel Filter: Ensure you get the correct replacement filter for your specific engine.
* Gloves: To protect your hands.
* Safety Glasses: To protect your eyes.
Steps:
1. Safety First: Disconnect the negative battery terminal.
2. Locate the Fuel Filter: This is usually located near the fuel tank, often along the frame rail on the driver's side. Consult your owner's manual for the exact location.
3. Prepare for Disconnection: Place your fuel collection container under the fuel lines. Loosen the fuel line clamps slightly to relieve pressure before fully disconnecting them.
4. Disconnect Fuel Lines: Use your fuel line disconnect tool to carefully separate the fuel lines from the old filter. If you don't have this tool, extreme caution is needed to avoid damaging the lines. There will be pressure in the lines, so be prepared for a small amount of fuel to escape.
5. Remove the Fuel Filter: Once the lines are disconnected, you should be able to unscrew or unclip the old fuel filter. It may be held in place by a clamp or retaining bracket.
6. Install the New Filter: Carefully inspect the new filter and ensure the orientation matches the old one. Pay close attention to any directional arrows or markings.
7. Reconnect Fuel Lines: Carefully reconnect the fuel lines to the new filter, making sure they are securely attached. Again, the fuel line disconnect tool is crucial here.
8. Tighten Clamps/Brackets: Securely fasten any clamps or brackets that hold the fuel filter in place.
9. Reconnect Battery Terminal: Reconnect the negative battery terminal.
10. Prime the Fuel System (Important!): After reconnecting the battery, you may need to prime the fuel system. This might involve turning the ignition key to the "ON" position several times (without starting the engine) to allow the pump to build pressure. Check your owner's manual for specific instructions. Some vehicles may require cranking the engine for a short period (while monitoring for starting).
11. Start the Engine: Once the fuel system is primed, try starting the engine. Check for any leaks around the fuel filter and lines.
Important Considerations:
* Fuel Pressure: Be prepared for some fuel spillage when disconnecting and reconnecting the lines.
* Fuel Spillage: Dispose of any spilled fuel properly.
* Correct Filter: Use only the correct replacement fuel filter specified for your 2003 Ford Explorer Sport Trac.
* Professional Help: If you are uncomfortable performing this repair yourself, take your vehicle to a qualified mechanic.
This is a general procedure; consult your owner's manual for the specific instructions relevant to your vehicle. Incorrectly performing this repair can lead to vehicle damage or even injury. If you have any doubts, seek professional help.
