Replacing 2009 Chevy Impala Fuel Pump: Step-By-Step Guide

The fuel pump in a 2009 Chevy Impala is located inside the fuel tank. To replace it, you'll first need to disconnect the battery to reduce the chance of a fire. Then, you'll need to remove the fuel tank or access the pump through an access panel in the passenger compartment. It's recommended to get the fuel pump replaced at a dealership's service department or by a professional mechanic due to the risk of fire. The cost of replacing a fuel pump varies but is estimated to be between $611 and $894, including parts and labor.

Fuel pump location

The fuel pump in a 2009 Chevy Impala is located inside the fuel tank. There is no access panel to reach the fuel pump, so the fuel tank must be removed to gain access to the pump.

Before removing the fuel tank, a pressure test and a voltage test should be performed to verify that the pump has failed. Once the fuel tank is removed, the pump can be accessed and replaced. It is important to note that the pump has lines attached, so simply cutting a hole to access the pump is not recommended as it will not provide enough space to remove the pump.

Additionally, cutting a hole in the floorboard can compromise the strength of the trunk floor and is not advisable. The fuel pump is submerged in the fuel tank, which helps to keep it cool and reduces the risk of fires.

Removing the fuel tank

To remove the fuel tank from a 2009 Chevy Impala, you will need to take the following steps:

Firstly, park the car on a level surface and engage the parking brake. It is important to work on a level surface to ensure that the fuel does not leak out when you remove the tank. Once the car is securely parked, disconnect the negative battery cable to reduce the risk of fire.

Next, locate the fuel tank and inspect it for any signs of damage or corrosion. The fuel tank is located underneath the vehicle, towards the rear. You will also need to identify the fuel lines and electrical connections that need to be disconnected before removing the tank. Place a suitable container or drip tray underneath the vehicle to catch any fuel that may spill during the removal process.

Now, carefully loosen and disconnect the fuel lines and electrical connections leading to the fuel tank. Be gentle with the fuel lines, as they may become brittle over time and crack if forced. Once all the connections have been disconnected, support the fuel tank with a jack or suitable support to prevent it from falling.

Finally, slowly lower the fuel tank and remove it from the vehicle. Be careful not to damage any surrounding components or the underside of the vehicle. Place the fuel tank in a safe area, away from any open flames or sparks, as it will still contain some fuel.

It is important to note that working on a fuel system can be dangerous, and there is a risk of fire. Always take the necessary precautions and have a fire extinguisher nearby. If you are not confident in performing this task, it is best to leave it to a professional mechanic.

Signs of a failing fuel pump

A fuel pump is located inside the fuel tank and ensures that pressurised gasoline flows to the engine to power the vehicle. While fuel pumps are designed to last the lifetime of the vehicle, they can occasionally fail.

• Engine Sputtering or Jerking: If your engine sputters or jerks during high speeds, this could be due to an inconsistent flow of fuel to the engine, which may be caused by a failing fuel pump.
• Power Loss: A faulty fuel pump may cause power loss while accelerating. This is due to the pump's inability to keep up with the engine's demands at higher speeds.
• Car Not Starting: A bad fuel pump can prevent the engine from receiving fuel, resulting in the car not starting.
• Unusual Noises: An unusually loud whining noise emanating from the fuel tank could indicate a bad fuel pump. This noise often becomes louder as the pump works harder to deliver fuel.
• Poor Fuel Efficiency: A decrease in fuel efficiency may be caused by a failing fuel pump, as it may consume more power and lead to more frequent trips to the fuel station.
• Engine Misfire: A fuel pump that is unable to supply enough fuel to the engine can cause one or more cylinders to misfire, resulting in a rough idle or difficulty starting the car.
• Stalling at High Temperatures: A faulty fuel pump may struggle to deliver sufficient fuel to the engine when it gets hot, causing the vehicle to stall.
• Vehicle Surges: If the fuel pump delivers too much fuel, the vehicle may surge forward and then slow down.
• Acceleration Issues: A failing fuel pump may not be able to deliver the necessary amount of fuel, leading to problems with acceleration.
• Check Engine Light: If the fuel flow becomes restricted, the check engine light may illuminate.
• Engine Overheating: A failing fuel pump can overheat and subsequently cause the engine to overheat as well.

If you notice any of these symptoms, it is recommended to consult a professional mechanic as soon as possible to prevent further issues and ensure a reliable and safe ride.

Fuel pump replacement cost

The fuel pump replacement cost varies depending on the vehicle's age, make, and model, as well as the location of the repair facility. The average cost for a fuel pump replacement across all vehicles is between $611 and $894, including parts and labor. However, the cost can be as low as $220 or as high as $2,500.

For a 2009 Chevrolet Impala, the cost of a fuel pump replacement will likely fall within the average range. It is recommended to take the vehicle to a Chevrolet dealership or a specialized service center for the repair. The labor costs for a fuel pump replacement are estimated to be between $150 and $350, while the parts can cost anywhere from $50 to $1,000.

It is important to note that the fuel pump replacement cost does not include taxes and fees, and there may be related repairs needed in addition to the fuel pump replacement. Additionally, it is generally recommended to replace the fuel filters at the same time as the fuel pump to ensure optimal performance and avoid future issues.

Safety precautions

Safety should be a top priority when replacing a fuel pump. Here are some detailed safety precautions to follow when replacing the fuel pump in a 2009 Chevy Impala:

Work in a Well-Ventilated Area:

Fuel vapors are highly flammable and toxic. Ensure that you work in a well-ventilated area, preferably outdoors, to minimize the risk of fire and inhaling harmful fumes.

Wear Proper Safety Gear:

Always wear safety glasses and gloves to protect your eyes and hands from fuel spills and splashes. Consider wearing a long-sleeved shirt and pants to protect your skin.

Drain the Fuel Tank:

Before starting the replacement process, drain or siphon out most of the fuel from the tank. This will reduce the risk of spills and make the fuel tank lighter and easier to handle.

Disconnect the Battery:

Before beginning any work, disconnect the negative battery terminal to prevent any accidental electrical shorts or injuries.

Clean Around the Fuel Pump:

Before removing the old fuel pump, clean the area around it to prevent dirt and debris from falling into the fuel tank.

Relieve Fuel System Pressure:

It is crucial to relieve the fuel system pressure before removing the fuel pump. You can do this by running the engine and pulling the fuel pump relay, causing the engine to stall. Alternatively, with the engine off, press the Schrader valve on the pressure line momentarily to release the fuel pressure.

Be Careful with Fuel Line Connections:

When removing the old fuel pump, pay close attention to the fuel line connections and wiring. Note how they are connected to ensure proper installation of the new fuel pump.

Reassemble and Test:

After installing the new fuel pump, carefully reassemble the fuel system. Test the new fuel pump to ensure that it is functioning correctly and that there are no fuel leaks.

Consult a Professional:

If you feel uncomfortable or unsure about any part of the process, consult a professional mechanic. Fuel pump replacement can be a complex task, and it is essential to prioritize your safety and the proper functioning of your vehicle.

By following these safety precautions, you can help ensure that you replace the fuel pump in your 2009 Chevy Impala safely and effectively.

Frequently asked questions