1. Safety First!
* Disconnect the negative battery terminal. This prevents accidental shorts and sparks.
* Relieve fuel pressure: This is vital. Consult your repair manual for the specific procedure. It usually involves repeatedly cycling the ignition key until the fuel pump stops running (the engine won't start as it's not getting fuel.) Some cars have a pressure release valve you can manually depress.
* Work in a well-ventilated area. Gasoline fumes are dangerous.
* Wear safety glasses and gloves.
2. Accessing the Fuel Pump:
* Locate the fuel pump access panel: This is typically located under the rear seat, in the trunk, or under the vehicle itself. Your repair manual will show you the exact location. You might need to remove parts of the interior trim to access it.
* Lower the fuel tank (in some cases): Depending on the model and the access method, you may need to partially or fully lower the fuel tank. This often requires disconnecting fuel lines, electrical connectors, and possibly the fuel tank straps. Be extremely careful when handling the fuel tank as it is heavy and contains fuel.
3. Replacing the Fuel Pump:
* Disconnect the electrical connector: Carefully disconnect the electrical connector leading to the fuel pump.
* Disconnect the fuel lines: Carefully disconnect the fuel lines using the appropriate fuel line disconnect tools. Be prepared for some fuel spillage. Have rags handy to clean up any spills. Never use a lighter or any open flame near gasoline
* Remove the fuel pump assembly: This usually involves removing retaining bolts, a retaining ring, or a lock ring. The pump assembly will contain the pump itself, a strainer, and possibly a sending unit.
* Install the new fuel pump assembly: Carefully install the new fuel pump assembly, making sure the gasket is properly seated. This should be done in reverse order of removal.
* Reconnect the fuel lines and electrical connector: Ensure all connections are secure and tight.
* Raise the fuel tank (if applicable): Securely raise the fuel tank to its proper position and secure all attachments.
* Reconnect the negative battery terminal.
4. Post-Installation:
* Check for leaks: Carefully inspect all connections for fuel leaks.
* Start the engine: Start the engine and listen for the fuel pump to prime (you should hear a brief hum).
* Check for proper fuel pressure: Use a fuel pressure gauge to verify correct fuel pressure according to your repair manual specifications. If the pressure is incorrect, there could still be a problem.
Important Notes:
* This is a simplified overview. The exact procedure will vary based on your specific vehicle.
* Always consult a repair manual specific to your 1995 Chevy Corsica. This manual will provide detailed instructions, diagrams, and torque specifications.
* If you are not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. Incorrect installation can lead to serious problems, including vehicle fire.
Remember safety is paramount. If you're unsure about any step, don't hesitate to seek professional help. A poorly executed fuel pump replacement can be dangerous.
