Where is the fuel pump located on a 2013 Chevy Sonic?

The fuel pump on a 2013 Chevy Sonic is located inside the fuel tank. Access for inspection or replacement is provided through an internal panel, which is typically reached from the rear seat area (sedan) or the cargo floor (hatchback). This article explains where to look and how servicing is typically performed.

Location by body style

Because the Sonic’s design differs slightly between sedan and hatchback, the access point varies. The following outlines the typical locations you should check first.

• Sedan (4-door) — Lift the rear seat cushion to reveal a circular access panel that covers the fuel pump inside the fuel tank.


• Hatchback (5-door) — Open the cargo area and remove the floor panel or carpeting to access the fuel pump through a panel in the cargo floor.

Note: Variations can occur by trim level or market. If in doubt, consult the owner’s manual or a qualified technician for your exact VIN and configuration.

Safely accessing and replacing the fuel pump

If you need to service the pump, follow standard safety precautions: relieve fuel system pressure, disconnect the battery, and work in a well-ventilated area away from flames or sparks. The steps below outline a typical approach, but always follow GM’s official procedure for your specific vehicle.

1. Relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls.


2. Disconnect the negative terminal of the battery.


3. For sedans, remove the rear seat cushion to expose the pump access panel; for hatchbacks, remove the cargo area floor panel to reach the pump access.


4. Unclip the electrical connector and disconnect the fuel line(s) using the proper tools, taking care to minimize spills.


5. Remove the retaining ring or fasteners securing the pump assembly and carefully lift the pump out of the tank.


6. Install the new pump, reseal as needed, reconnect lines and wiring, and reseat the assembly back into the tank.


7. Reassemble the access panels, reconnect the battery, and test the system by turning the ignition to the run position to prime the pump and check for leaks.

If you’re not comfortable performing this job, seek a professional technician. Fuel system work can be dangerous and may affect safety systems or warranties.

Signs of a failing fuel pump

Be alert for symptoms that may indicate a fuel delivery issue, which can help you arrange care before a breakdown occurs:

• Difficulty starting the vehicle or stalling at idle


• Engine misfires, sputtering, or loss of power during acceleration


• Unusual whining noises from the rear of the vehicle or decreased fuel efficiency


• Inconsistent engine performance, especially at higher speeds or under load

Diagnosing these symptoms may involve checking the fuel pressure, electrical wiring, and related components in addition to the pump itself.

Summary

The 2013 Chevy Sonic’s fuel pump resides inside the fuel tank, with access points tied to the vehicle’s body style: under the rear seat for sedans and in the cargo floor for hatchbacks. Understanding the location helps in planning maintenance or replacement, while safety precautions and manufacturer procedures should guide any service. If in doubt, consult a qualified technician to ensure proper care and safety.

How much does it cost to replace a fuel pump on a Chevy Sonic?

The cost to replace a Chevy Sonic fuel pump typically ranges from $800 to over $1,200, including parts and labor. The price varies based on the car's model year, the specific parts used (OEM versus aftermarket), and the labor rates at the repair shop. For example, some older or simpler models may cost less, while newer models with more complex systems could be more expensive. 
This video explains how much a fuel pump replacement costs: 57sLearnToDIY360YouTube · May 21, 2025
Cost breakdown

• Parts: Fuel pump assemblies can cost anywhere from about $80 to over $500 depending on the brand and type. 
• Labor: The labor cost depends on the shop's hourly rate and the complexity of the job. A simple fuel pump replacement in the tank might take 1 to 6 hours. 

How to estimate the cost for your specific car

• Use online estimators: Websites like Kelley Blue Book and YourMechanic can provide estimates based on your vehicle's year and model. 
• Get quotes from local shops: Contact different mechanics, including both dealerships and independent shops, to compare prices. 
• Check parts costs: Before getting a quote, you can look up the cost of a replacement fuel pump for your specific year and model on parts websites to get an idea of the part's price. 

Where is the fuel pump located?

The fuel pump is most commonly located inside the fuel tank in most modern vehicles. In older cars with mechanical pumps, it is typically mounted on the side of the engine block. Some modern vehicles with direct injection may have a second, high-pressure fuel pump located near the engine under the hood.
 
You can watch this video to learn how to access and replace a fuel pump in a car: 57sScotty KilmerYouTube · Jun 23, 2011
In modern vehicles

• Primary pump: Located inside the fuel tank, it's submerged in fuel and pumps gas to the engine. 
• High-pressure pump (if applicable): Found in the engine bay, often near the fuel rail, for vehicles with gasoline direct injection (GDI). 

This video explains the function of a fuel pump and its components: 50sspeedkar99YouTube · Jun 19, 2017
In older vehicles

• Mechanical pump: Located on the side of the engine block.
• Driven by the camshaft: A lobe on the camshaft operates the mechanical pump. 

How to find the pump in your car

• Check the fuel tank: The most common location for the primary electric pump is inside the fuel tank. 
• Look under the rear seat: In many cars, the fuel tank is under the rear seat. An access panel, often under the carpet, allows you to see the top of the tank where the pump is located, according to this eBay article and Goldfarb & Associates Inc. 
• Look under the hood: If your car has GDI, a second high-pressure fuel pump might be located in the engine bay. 

Where is the fuel pump on a 2013 Chevy Sonic?

Located inside your fuel tank, a fuel pump has a small electric motor to make sure that pressurized gasoline flows to the engine to power the vehicle.

Can you replace a fuel pump without dropping the tank?

Yes, you can replace a fuel pump without dropping the tank, but the method depends on the vehicle. Some vehicles have an access panel under the rear seat, while others require cutting a new access hole in the floor or bed. However, for many vehicles, the recommended method is to drop the tank, which is sometimes easier than it seems, especially when the tank is empty. 
This video demonstrates how to replace a fuel pump without dropping the tank: 57sDaniel EnglingYouTube · Dec 10, 2015
Accessing the fuel pump without dropping the tank

• Check for a factory access panel: The easiest method is if your vehicle has a pre-existing access port in the floor, usually under the rear seat, to reach the fuel pump assembly. 
• Cut a new access panel: If there's no factory panel, some people cut their own. This is a more advanced and risky procedure that requires extreme care not to puncture the fuel tank or lines. 
  • Remove the rear seat and carpet. 
  • Locate the fuel pump on top of the tank. 
  • Carefully cut a hole in the floor above the pump using a grinder. 
  • Replace the fuel pump. 
  • Reattach the cut-out piece with sheet metal and screws. Some suggest leaving it open or adding hinges for future access, although this is generally not recommended due to safety and potential fumes entering the cabin. 

Replacing the fuel pump by dropping the tank 

• This is the method recommended by many mechanics for most vehicles because it avoids the risks associated with cutting through the vehicle's floor. 
• If you don't have a lift, you can use jack stands to raise the vehicle and a floor jack to support the tank. 
• Carefully disconnect the fuel lines and electrical connections from the top of the tank. 
• Support the tank with the floor jack and then slowly lower it, allowing enough room to replace the pump assembly. 
• For many vehicles, it is a good idea to siphon out the fuel to make the tank lighter and easier to handle. 

Important considerations

• Safety: Always disconnect the battery, work in a well-ventilated area, and take precautions against sparks and open flames when working with gasoline. Wear gloves and eye protection to avoid contact with fuel. 
• Complexity: Dropping the tank, even partially, can be a challenge depending on the vehicle's design, particularly if the tank is full or rusted. Cutting an access hole is a potentially dangerous alternative and should only be attempted if you are certain of your abilities and have researched the procedure thoroughly for your specific make and model. 
• Professional help: If you are unsure about either method, it is best to consult a professional mechanic or a DIY garage with the proper tools, especially if you lack experience. 

This video explains the importance of safety when replacing a fuel pump: 59s1A Auto: Repair Tips & Secrets Only Mechanics KnowYouTube · Nov 22, 2020