1. Safety First:
* Disconnect the negative battery terminal. This is essential to prevent electrical shocks.
* Ventilate the area. Work in a well-ventilated area or outdoors to avoid inhaling fuel fumes. Fuel fumes are highly flammable and potentially hazardous.
* Wear safety glasses and gloves. Protect yourself from potential injury.
* Have a fire extinguisher readily available.
2. Accessing the Fuel Pump:
* Locate the fuel pump access panel. This is usually located under the rear passenger seat or in the cargo area. You may need to remove some interior trim panels to gain access. Your repair manual will show the exact location.
* Remove the access panel. This usually involves removing screws or clips.
3. Disconnecting the Fuel System:
* Relief Pressure: You MUST relieve the fuel pressure in the system before disconnecting any fuel lines. The method for doing this varies slightly by year and model; your repair manual will specify the procedure. It usually involves turning the key in the ignition several times or using a fuel pressure release tool.
* Disconnect the electrical connector: Carefully disconnect the electrical connector leading to the fuel pump.
* Disconnect fuel lines: Carefully disconnect the fuel supply and return lines. Have rags or absorbent material ready to catch any spilled fuel. Use fuel line disconnect tools if necessary to avoid damage.
4. Removing the Fuel Pump Assembly:
* Remove the retaining ring or bolts: The fuel pump assembly is usually secured by a retaining ring or bolts. Remove these carefully.
* Remove the fuel pump assembly: Carefully lift the fuel pump assembly out of the tank. It might be attached to a hanger or straps inside the tank.
5. Replacing the Fuel Pump (If Necessary):
* Install the new fuel pump assembly (if applicable): Make sure to orient the pump correctly and carefully reconnect the fuel lines and electrical connector.
6. Reassembly:
* Reinstall the retaining ring or bolts.
* Reconnect the fuel lines and electrical connector.
* Reinstall the access panel.
* Reconnect the negative battery terminal.
7. Check for Leaks:
* Check for any fuel leaks after reassembly. If you find any leaks, immediately shut off the fuel system and rectify the problem before starting the vehicle.
Important Considerations:
* Fuel pump assembly: The fuel pump isn't usually replaced on its own; it's often part of a larger module or assembly that includes the sending unit, etc. You might need to replace the entire assembly.
* Repair manual: A repair manual specific to your 2001 Pontiac Aztek is indispensable. It will provide detailed step-by-step instructions, diagrams, and torque specifications, ensuring you do the job correctly and safely.
Disclaimer: This is a general guide. Improper repair can lead to serious injury or damage. If you are not comfortable performing this repair yourself, take your vehicle to a qualified mechanic. They have the experience, tools, and knowledge to do the job safely and correctly.
