Here's a general outline of the process. However, always consult a repair manual specific to your 1993 Ford Tempo for detailed instructions, torque specifications, and diagrams. Repair manuals can be found online or at auto parts stores. This outline omits some specifics that vary depending on the precise engine and model.
1. Preparation:
* Safety First: Disconnect the negative battery cable.
* Gather Tools: You'll need a variety of tools, including sockets, wrenches (including a fuel line disconnect tool is highly recommended), screwdrivers (Phillips and flathead), a fuel pump pliers or similar tool to remove the retaining ring on the fuel pump assembly, jack, jack stands, safety glasses, gloves, and possibly a fuel pressure gauge.
* Drain Fuel: If possible, carefully drain some fuel from the tank to reduce pressure and the amount of fuel you'll be working around. This reduces the risk of spillage and fire.
* Locate the Fuel Pump: On most Tempo models, the fuel pump is located inside the fuel tank, accessible from underneath the vehicle.
2. Accessing the Fuel Pump:
* Raise and Support the Vehicle: Safely jack up the rear of the vehicle and secure it on jack stands.
* Locate the Fuel Tank Access Panel: This is usually located under the rear seat or under the vehicle near the fuel tank. You may need to remove some interior trim pieces to reach it. The access panel itself may require removal of bolts or clips.
* Lower the Fuel Tank (Possibly): On some Tempo models, you may need to lower the fuel tank slightly to get enough access. This often involves disconnecting the fuel lines, the tank straps, and the electrical connector to the fuel pump. Be prepared for some fuel spillage, even with draining. Support the tank carefully during this process to avoid damage.
3. Replacing the Fuel Pump:
* Disconnect Fuel Lines and Electrical Connector: Carefully disconnect the fuel lines using the appropriate fuel line disconnect tool (to avoid damage). Label the lines clearly to avoid confusion during reassembly. Disconnect the electrical connector to the fuel pump.
* Remove the Fuel Pump Access Cover: Once you have access to the fuel pump inside the tank, remove the retaining ring (usually with a fuel pump pliers) to access the fuel pump assembly.
* Remove the Old Fuel Pump: Carefully remove the old fuel pump from the assembly.
* Install the New Fuel Pump: Install the new fuel pump, ensuring it's seated correctly. Replace the retaining ring securely.
* Reconnect Everything: Reconnect the electrical connector and fuel lines, making sure everything is secure and correctly positioned. Double-check your work!
4. Reassembly and Testing:
* Raise the Fuel Tank (If Necessary): Raise the fuel tank back to its original position (if you lowered it).
* Reinstall Access Panel: Reinstall the fuel tank access panel and any interior trim pieces you removed.
* Lower the Vehicle: Carefully lower the vehicle from the jack stands.
* Reconnect the Battery: Reconnect the negative battery cable.
* Prime the Fuel System: Some systems require priming the fuel pump. Refer to your repair manual for the specific procedure for your vehicle. You might need to crank the engine for a few seconds (without starting) or use a fuel pump prime tool.
* Check for Leaks: Carefully inspect for any fuel leaks around the fuel lines and connections.
* Start the Engine: Start the engine and let it run for a few minutes to check for proper operation.
Important Notes:
* Fuel is highly flammable. Work in a well-ventilated area, away from any open flames or sparks.
* Fuel can be harmful if ingested or inhaled. Wear appropriate safety equipment.
* If you're not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Improperly installing a fuel pump can lead to serious problems, including fire.
This is a general overview. The specifics of the procedure may vary depending on the exact model and engine of your 1993 Ford Tempo. Always refer to a repair manual specific to your vehicle for detailed instructions and diagrams. Ignoring this advice could lead to injury or damage to your vehicle.
