Here's a general procedure. Specifics may vary slightly depending on your Bronco's trim and modifications:
1. Safety First:
* Disconnect the battery's negative terminal. This prevents accidental sparking.
* Ventilate the area. Work in a well-ventilated area, preferably outdoors.
* Wear safety glasses and gloves. Fuel can be irritating to skin and eyes.
* Have a fire extinguisher readily available.
* Use a fuel-safe container to collect any spilled fuel. A plastic container specifically designed for gasoline is best. Never use glass.
2. Preparation:
* Locate the fuel lines. They'll be connected to the top of the gas tank. One line will be the fuel supply line (often larger diameter), and the other is the fuel return line (smaller diameter). You might also have a vent line.
* Identify the lines. Mark them clearly (e.g., with tape) to ensure correct reconnection. Take pictures before disconnecting if you are unsure.
3. Disconnecting the Lines:
* Relieve fuel pressure. This is crucial. There are a few ways to do this:
* Run the engine until it stalls (if possible). This will use up most of the pressure in the system.
* Use a fuel pressure release tool. This is the safest and most effective method. This tool is specific to your vehicle and can be bought at most auto parts stores. It usually involves connecting to the fuel rail, letting out the pressure to almost nothing.
* Consult your repair manual for specific instructions on relieving fuel pressure for your vehicle.
* Once the pressure is released, carefully loosen the clamps securing the fuel lines to the tank. These are usually hose clamps. Use the correct tool to avoid damaging the lines. A small flat-head screwdriver or a hose clamp pliers is typically sufficient.
* Gently wiggle the lines free. They may be stiff from age and fuel residue. Avoid bending the lines excessively. If they're stuck, use a small amount of penetrating oil, working it into the connection. Allow to sit for a few minutes. Then gently try wiggling again.
* Collect any spilled fuel immediately. Use absorbent cloths or rags.
4. Post-Disconnection:
* Inspect the fuel lines for cracks or damage. Replace any damaged lines.
* Cap the fuel lines to prevent debris from entering the system. This is very important for the gas tank.
Important Considerations:
* Consult a repair manual: A repair manual specific to your 1996 Ford Bronco is highly recommended. It will provide detailed diagrams and instructions, making the process safer and easier.
* Professional help: If you're uncomfortable working with fuel lines, it's best to seek professional help from a qualified mechanic. This is a job where a mistake could have dangerous consequences.
Remember, safety is paramount when working with fuel lines. Take your time, be careful, and follow all safety precautions.
