Here's a general outline; specifics may vary slightly depending on the exact configuration of your vehicle. Always consult a repair manual specific to your 1987 Crown Victoria for detailed instructions and diagrams. A Haynes or Chilton manual is a good investment for this and other repairs.
1. Preparation:
* Safety First: Work in a well-ventilated area. Have a fire extinguisher readily available. Wear safety glasses and gloves.
* Gather Tools: You'll need a variety of tools, including sockets (various sizes), wrenches, screwdrivers (Phillips and flathead), possibly a fuel line disconnect tool, pliers, a jack, jack stands, and possibly a fuel pump pressure gauge (to test after installation).
* Drain Fuel: This is crucial to minimize the amount of fuel you'll be working around. You can siphon the fuel out of the tank, or carefully lower the fuel level using the vehicle.
* Disconnect Battery: Disconnect the negative (-) battery terminal.
2. Accessing the Fuel Pump:
* Locate the Fuel Pump Access Panel: This is usually located under the rear seat, in the trunk, or possibly under the car itself (check your repair manual). You may need to remove the rear seat bottom cushion or trim panels to access it.
* Remove Access Panel: Carefully remove any access panels or covers.
3. Removing the Old Fuel Pump:
* Disconnect Electrical Connectors: Disconnect the electrical connector(s) leading to the fuel pump.
* Disconnect Fuel Lines: You'll need to disconnect the fuel lines. This often involves using a fuel line disconnect tool to avoid damaging the lines. Be prepared for some fuel spillage, even after draining the tank. Use rags to soak up any spills.
* Remove the Fuel Pump Assembly: This might involve removing retaining bolts or clamps securing the fuel pump to the tank. The assembly may come out as a unit, or the pump may need to be removed from the assembly. Your repair manual will show you how.
4. Installing the New Fuel Pump:
* Install the New Fuel Pump Assembly: Carefully install the new fuel pump assembly, ensuring it's properly seated.
* Reconnect Fuel Lines: Reconnect the fuel lines, ensuring a tight seal.
* Reconnect Electrical Connectors: Reconnect the electrical connectors.
* Reinstall Access Panel: Reinstall the access panel(s).
5. Testing:
* Reconnect Battery: Reconnect the negative (-) battery terminal.
* Check for Leaks: Check all fuel line connections for leaks.
* Start the Engine: Start the engine and listen for any unusual noises coming from the fuel pump.
* Check Fuel Pressure (Optional): Use a fuel pressure gauge to verify the fuel pressure is within the manufacturer's specifications. This step helps ensure proper pump function.
Important Considerations:
* Fuel Pump Module: On many vehicles, the fuel pump is part of a larger fuel pump module. Replacing the entire module is often easier than trying to replace just the pump itself.
* Primer: Some fuel pumps require priming before the engine will start.
* Professional Help: If you are not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Incorrect installation can lead to a dangerous fire hazard or damage to your vehicle's fuel system.
This is a general overview. Always consult a repair manual specific to your 1987 Ford Crown Victoria for detailed instructions and safety precautions before attempting this repair. The manual will have diagrams and precise instructions tailored to your specific vehicle. Failure to follow these instructions properly could result in injury or damage.
