Here's a general outline of the process. This is NOT a comprehensive guide, and specific steps may vary slightly. Always consult a repair manual specific to your 1995 Buick Riviera for detailed instructions, diagrams, and torque specifications. A Haynes or Chilton manual would be very helpful.
Safety First!
* Disconnect the negative battery terminal before starting any work. This prevents accidental sparks and electrical shocks.
* Work in a well-ventilated area. Fuel fumes are flammable and dangerous.
* Wear safety glasses and gloves.
* Have a fire extinguisher readily available.
Steps (General Outline):
1. Preparation:
* Gather necessary tools: socket set (metric), wrenches, screwdrivers, fuel line disconnect tool, fuel pump pliers (or similar), jack stands, safety glasses, gloves, rags, new fuel filter (recommended), new fuel pump assembly.
* Locate the fuel pump access panel. This is typically under the rear seat or in the trunk, depending on the specific model. Your repair manual will show the exact location.
* Drain the fuel tank as much as possible. This will minimize the amount of fuel you'll be working around. You can use a fuel siphoning pump or carefully drain it through the fuel lines (after disconnecting them, of course).
* Support the vehicle safely on jack stands.
2. Access the Fuel Pump:
* Remove the access panel (usually involves removing the rear seat or accessing a panel in the trunk).
* You'll likely find a retaining ring or clamp holding the fuel pump assembly in place. Remove this securely.
3. Disconnect Fuel Lines and Electrical Connector:
* Carefully disconnect the fuel lines using the appropriate fuel line disconnect tool. Be prepared for some fuel spillage. Have rags ready to absorb any leaks.
* Disconnect the electrical connector to the fuel pump.
4. Remove the Fuel Pump Assembly:
* The fuel pump may be held in place by a retaining ring or a retaining nut. Carefully remove this, using the fuel pump pliers if necessary.
* Lift out the entire fuel pump assembly. This may be a single unit or several components.
5. Installation:
* Carefully inspect the new fuel pump assembly to ensure it matches the old one.
* Reverse the removal procedure to install the new fuel pump assembly. Pay close attention to the orientation of the pump and any seals.
* Reconnect the electrical connector and fuel lines securely. Use clamps if needed and ensure tight connections.
6. Testing:
* Reinstall the access panel.
* Reconnect the negative battery terminal.
* Turn the ignition key to the "ON" position (don't start the engine) to prime the fuel system. Listen for the fuel pump to run briefly.
* Carefully check for any fuel leaks around the connections.
* Start the engine and check for any problems, such as rough running or stalling.
Important Considerations:
* Fuel Pressure: Some models require you to relieve fuel pressure before disconnecting the fuel lines. Your repair manual will specify the proper procedure.
* Fuel Pump Seal: Make sure you replace the fuel pump seal if it's damaged. This prevents leaks.
* Fuel Filter: Replacing the fuel filter at the same time is highly recommended.
* Professional Assistance: If you're not comfortable performing this repair, take your vehicle to a qualified mechanic. It's better to pay a professional than to risk damage to your vehicle or personal injury.
This is a simplified overview. Refer to a repair manual for your specific vehicle model for detailed, step-by-step instructions and diagrams. Failing to follow the correct procedures could lead to serious problems. Remember safety first!
