Here's a general outline. Specific steps may vary slightly depending on your Firebird's trim level and whether it has a specific aftermarket system. Consult a repair manual specific to your vehicle year and model for the most accurate instructions and diagrams.
1. Safety First:
* Disconnect the battery's negative terminal. This prevents accidental sparks.
* Depressurize the fuel system. This is crucial. There are several ways to do this:
* Run the engine until it stalls: This is the easiest, but might not fully depressurize it.
* Use a fuel pressure gauge: Connect the gauge to the fuel rail and release pressure following the gauge instructions.
* Manually relieve pressure: Some fuel systems have a pressure release valve that can be manually operated (consult your repair manual).
* Ventilate the area: Work in a well-ventilated area, away from any open flames or sparks.
2. Access the Fuel Pump:
* Locate the fuel pump access panel: This is usually located under the rear seat of the Firebird. You may need to remove the rear seat or portions of it.
* Remove the access panel: The panel may be held in place by clips, screws, or bolts.
3. Remove the Fuel Pump:
* Disconnect the electrical connector: Carefully unplug the fuel pump's electrical connector.
* Disconnect the fuel lines: This requires fuel line disconnect tools. Be prepared for some fuel spillage, even after depressurization. Use rags to absorb any leaks. Take note of how the lines are connected to avoid mistakes during reassembly.
* Remove the retaining ring or clamp: The fuel pump assembly is typically held in place by a retaining ring or clamp. You may need a special tool to remove this.
* Lift out the fuel pump assembly: Carefully lift the fuel pump assembly out of the tank. This may require some maneuvering.
4. Replace the Fuel Pump (if necessary):
* Install the new fuel pump assembly, ensuring proper seating and alignment.
* Re-attach the retaining ring or clamp.
* Reconnect the fuel lines, ensuring a tight and secure connection.
* Reconnect the electrical connector.
* Replace the access panel.
* Reconnect the battery's negative terminal.
5. Prime the Fuel System (after installation):
* Before attempting to start your car, you might need to prime the fuel system. This usually involves turning the ignition key to the "on" position for a few seconds, several times, allowing the pump to fill the fuel lines. Consult your repair manual for the exact procedure.
Important Considerations:
* Repair Manual: A repair manual specific to your 1999 Firebird is highly recommended. It will provide detailed diagrams and instructions.
* Tools: You'll need various tools, including screwdrivers, sockets, wrenches, fuel line disconnect tools, and possibly a retaining ring tool.
* Fuel Pump Replacement: If you're replacing the fuel pump, make sure to get the correct part for your vehicle.
* Safety: Remember, safety is your top priority. Always work in a safe and well-ventilated area and take precautions to avoid fire hazards.
If you're not comfortable performing this task, it's best to take your Firebird to a qualified mechanic. This is not a beginner-level repair and improper execution can lead to serious damage or injury.
