Safety First:
* Disconnect the negative battery terminal before beginning any work on the fuel system. Gasoline is highly flammable.
* Work in a well-ventilated area. Fuel fumes are dangerous.
* Use appropriate safety glasses and gloves.
* Have a fire extinguisher readily available.
Tools You'll Likely Need:
* Socket set (metric)
* Wrenches (metric)
* Screwdrivers (Phillips and flathead)
* Fuel line disconnect tool (to avoid damaging the lines)
* Jack and jack stands (to safely lift the truck)
* New fuel pump
* New fuel filter (recommended)
* Shop rags
* Safety glasses
* Gloves
* Fuel pump installation kit (if required – some kits include new gaskets, seals, etc.)
General Steps (Consult your repair manual for precise details):
1. Locate the Fuel Pump: On most 1987 F250s, the fuel pump is located inside the fuel tank. This means you'll need to drop the tank.
2. Drop the Fuel Tank:
* Disconnect the fuel lines: Use a fuel line disconnect tool to safely disconnect the fuel supply and return lines. Have rags ready to soak up any spilled fuel.
* Disconnect the fuel tank electrical connector: Carefully unplug the connector.
* Disconnect the fuel tank vent line: This often involves a hose clamp.
* Support the tank: Use jack stands to support the tank once it's lowered.
* Lower the tank: Carefully lower the tank. You might need to disconnect the tank straps.
3. Access the Fuel Pump: Once the tank is lowered (or removed entirely, depending on your truck), you'll usually find the fuel pump assembly mounted inside the tank. It might be held in place with a retaining ring or bolts.
4. Remove the Old Fuel Pump: Carefully remove the old fuel pump, paying attention to the orientation of any parts (take pictures!).
5. Install the New Fuel Pump: Install the new fuel pump, ensuring it's seated correctly and all gaskets and seals are in place.
6. Reassemble: Reinstall the fuel tank and reconnect all lines and electrical connectors in reverse order of removal. Double-check all connections to ensure they're secure.
7. Check for Leaks: Carefully inspect all fuel lines and connections for leaks.
8. Reconnect the Battery: Reconnect the negative battery terminal.
9. Prime the Fuel System (If Necessary): Some vehicles require priming the fuel system after a fuel pump replacement. Your repair manual will explain how to do this (often involves cycling the ignition switch).
10. Start the Engine: Start the engine and listen for any unusual noises. Check for leaks again.
Important Considerations:
* Fuel Tank Safety: Gasoline is highly flammable and potentially explosive. Take all necessary precautions.
* Fuel Pressure: Some fuel systems require a fuel pressure gauge to ensure proper operation.
* Professional Help: If you're not comfortable performing this repair yourself, take your truck to a qualified mechanic. A poorly installed fuel pump can lead to serious problems.
This is a simplified overview. Always consult a repair manual specific to your 1987 Ford F250 and its engine before attempting this repair. Improper installation can cause serious damage to your vehicle or even result in injury.
