Here's a general procedure. Specific locations might vary slightly depending on your engine type and the exact filter setup:
Tools You'll Need:
* Wrench (likely 10mm or 13mm): To loosen any retaining clips or clamps on the fuel lines.
* Fuel Line Disconnect Tool (optional but highly recommended): These tools help to disconnect the fuel lines without damaging them. They're specifically designed to grip the line without pinching it.
* Rags or Shop Towels: To clean up any spilled fuel.
* Container: To catch spilled fuel.
* Safety Glasses: To protect your eyes from fuel spray.
* Gloves: To protect your hands.
Procedure:
1. Locate the Fuel Filter: It's usually found near the fuel tank, often along the frame rail. Consult your owner's manual or a repair manual specific to your Ranger's year and engine to locate its exact position.
2. Prepare for Disconnection: Place your container under the fuel lines to catch any escaping fuel. Have your rags ready.
3. Loosen the Fuel Line Clamps: Carefully loosen the clamps holding the fuel lines to the filter. Use the correct size wrench and avoid damaging the lines. If your lines have quick-connect fittings, use the disconnect tool to prevent damage. Some Ford Rangers may use push-on fittings requiring a gentle prying action using a flat-head screwdriver carefully placed between the line and fitting. Be extra gentle with these to avoid damage.
4. Disconnect the Fuel Lines: Once the clamps are loosened, gently pull the fuel lines away from the filter. Fuel may leak out; this is why you need your container and rags. Work slowly and carefully to minimize spillage.
5. Clean Up: Once disconnected, wipe away any spilled fuel immediately.
Important Considerations:
* Fuel Pressure: The fuel lines will still contain pressure. Allowing the engine to run for a short while before disconnecting the lines can help relieve some pressure. However, always disconnect the negative battery terminal first.
* Fuel System Leaks: After replacing the fuel filter and reconnecting the lines, carefully check for any leaks.
Disclaimer: This is general guidance. Always refer to a repair manual specific to your 2003 Ford Ranger model and engine for detailed instructions and safety precautions. Improperly working on your fuel system can be dangerous. If you are uncomfortable performing this task, it's best to have a qualified mechanic do it for you.