1. Preparation:
* Disconnect the battery: This is crucial to prevent electrical shorts and potential explosions. Disconnect both negative (-) and positive (+) terminals.
* Safety Precautions: Wear safety glasses and gloves. Have a fire extinguisher nearby. Work in a well-ventilated area.
* Gather Tools: You'll need a socket set (including various sizes), wrenches (open-end and possibly box-end), a fuel pump removal tool (often specialized, but sometimes a pry bar can be used carefully), jack stands, jack, fuel line disconnect tools (may be specialized or just pliers), rags, a container to catch fuel, and possibly a new fuel filter (it's a good idea to replace this while you're at it).
* Drain the fuel tank (partially): This will significantly reduce the amount of fuel you have to deal with. You can use a siphon pump or drain the tank through its drain plug (if equipped).
2. Accessing the Fuel Pump:
* Locate the fuel pump: Usually accessed from under the car, either through a dedicated access panel in the trunk or by dropping the fuel tank. Consult your repair manual for the exact location. Some Corsicas might have the pump in the tank, requiring tank removal.
* Raise and secure the vehicle: Safely lift the car using a jack and place it securely on jack stands. Never work under a car supported only by a jack.
* Access panel (if applicable): If your Corsica has an access panel, remove it to expose the fuel pump.
3. Fuel Pump Replacement:
* Disconnect fuel lines: Carefully disconnect the fuel supply and return lines. Have rags ready to absorb any spilled fuel. These lines are usually held in place with clamps or quick-disconnect fittings. Note the orientation and location of the lines before disconnecting them.
* Disconnect electrical connector: Disconnect the electrical connector from the fuel pump.
* Remove the fuel pump: This is the most challenging step. It may be held in place by a retaining ring or clamp that requires a special tool. If the pump is within the tank, you will likely have to remove the tank itself.
* Install the new fuel pump: Carefully install the new fuel pump, ensuring that it is seated correctly. Reattach the retaining ring or clamp.
* Reconnect the fuel lines and electrical connector: Reconnect the fuel lines and electrical connector, making sure they are secure.
* Lower the vehicle: Carefully lower the vehicle from the jack stands.
4. Post-Installation:
* Reconnect the battery: Reconnect the battery terminals.
* Check for leaks: Inspect all fuel line connections for leaks.
* Prime the fuel system: This may involve turning the ignition key on and off several times to allow the pump to prime the system. Consult your repair manual for the specific procedure.
* Start the engine: Start the engine and listen for any unusual noises or check for leaks again.
* Test drive: Take the car for a test drive to ensure the new fuel pump is functioning correctly.
Important Considerations:
* Fuel tank removal: If your fuel pump is located inside the tank, removing the tank is a significant undertaking. This may require disconnecting various components, including the fuel sender unit, tank straps, and possibly brake lines.
* Repair Manual: A Haynes or Chilton repair manual specific to your 1988 Chevy Corsica is highly recommended. These manuals provide detailed instructions with illustrations.
* Professional help: If you are not comfortable performing this repair yourself, it's best to take your car to a qualified mechanic. Fuel system repairs can be dangerous if not handled correctly.
This is a general guide; specific steps might vary. Always refer to a repair manual specific to your vehicle for detailed instructions and safety precautions. Improperly handling fuel can be dangerous. If you're unsure about any step, consult a professional mechanic.
