Here's a general outline. This is not a substitute for a proper repair manual specific to your 2006 Impala. Consult a repair manual (like a Haynes or Chilton manual) for detailed instructions, diagrams, and torque specifications. Improper installation can lead to serious damage or injury.
Tools You'll Likely Need:
* Socket set and wrenches: Various sizes, including metric and possibly SAE.
* Screwdrivers: Phillips and flathead.
* Fuel pump pliers: These are specialized pliers to help remove the fuel lines.
* Fuel line disconnect tools: These make disconnecting the fuel lines easier and safer, preventing damage.
* Torque wrench: Essential for tightening bolts to the correct specification.
* Jack and jack stands: To safely lift and support the vehicle.
* Safety glasses and gloves: Always wear appropriate safety gear.
* Wrench for the fuel filter (if replacing it as well)
* Shop rags or absorbent towels: To clean up any spilled fuel.
* New fuel pump assembly: Make sure you get the correct part for your vehicle's engine.
* Possibly a fuel pressure gauge: To check fuel pressure after the installation is complete.
General Steps (Consult your repair manual for precise details):
1. Disconnect the Negative Battery Terminal: This is crucial to prevent sparks and electrical hazards.
2. Lower the Fuel Tank: This usually involves removing access panels under the vehicle and detaching the fuel tank straps. You may need to disconnect the fuel sender unit and possibly the fuel tank filler neck. Be prepared for the tank to be heavy; you may need a helper. The method for lowering varies by model and trim.
3. Disconnect Fuel Lines: Carefully disconnect the fuel lines using the proper fuel line disconnect tools. Have rags ready to absorb any spilled fuel.
4. Disconnect Electrical Connectors: Disconnect the electrical connectors to the fuel pump.
5. Remove the Fuel Pump Assembly: The access to the fuel pump is usually through a hole in the top of the fuel tank. The pump may be held in place by a retaining ring or other fastening mechanism. You may have to remove the fuel sending unit to access the pump depending on your vehicle's design.
6. Install the New Fuel Pump Assembly: Carefully install the new fuel pump assembly, ensuring all seals are properly seated.
7. Reconnect Fuel Lines and Electrical Connectors: Carefully reconnect the fuel lines and electrical connectors. Ensure the connections are secure to prevent leaks.
8. Raise and Secure the Fuel Tank: Raise and securely fasten the fuel tank back into its original position.
9. Reconnect the Negative Battery Terminal: Reconnect the battery terminal.
10. Prime the Fuel System: You may need to prime the fuel system using the vehicle's starting procedure to get fuel flowing to the engine. Check for leaks.
11. Test the Vehicle: Start the vehicle and check for any leaks or performance issues.
Important Considerations:
* Fuel Pressure: You might need to bleed the fuel system to remove any air bubbles after installation.
* Safety: Gasoline is highly flammable, work in a well-ventilated area, away from any ignition sources.
* Repair Manual: Referencing a repair manual is absolutely essential for step-by-step instructions and safety precautions specific to your 2006 Chevrolet Impala. Trying to do this without one significantly increases the risk of damage or injury.
This is a complex repair. If you are not comfortable working on your car's fuel system, it's highly recommended to take it to a qualified mechanic. Improper installation can lead to serious problems, including fire hazards.
