2013 Chevy Malibu Fuel Pump Replacement: A Complete Step-by-Step Guide

If your 2013 Chevy Malibu is showing signs of a failing fuel pump—such as sputtering at highway speeds, difficulty starting, or a lack of power during acceleration—the solution is often a fuel pump replacement. This is a moderately complex job that can be done by an experienced DIYer, but it requires careful planning, proper tools, and strict safety precautions. The total cost to replace the fuel pump on a 2013 Chevy Malibu typically ranges from $350 to $1,200, depending on whether you do it yourself or hire a professional, and whether you use OEM or aftermarket parts . For a DIY replacement, the parts alone will cost between $105 and $420, while professional labor adds another $200 to $600 . The most important thing to know upfront is that you should replace the entire fuel pump module assembly (including the fuel level sending unit and filter sock) rather than just the pump motor itself, to avoid future failures .

Symptoms of a Bad Fuel Pump in a 2013 Chevy Malibu

Before you start replacing parts, make sure the symptoms point to a bad fuel pump. Common signs include:

• Engine sputters or struggles to maintain speed when driving at highway speeds
• Difficulty starting the car or a no-start condition
• Loss of power or hesitation during acceleration, especially under load
• Whining or humming noise coming from the fuel tank area (a healthy fuel pump should be quiet)
• Check Engine Light comes on with fuel pressure-related codes
• Engine stalls shortly after starting

If you experience any of these symptoms, a fuel pressure test is the best way to confirm the pump is the problem. A mechanic can perform this test, or you can buy a fuel pressure test kit for around $30–$50.

How to Access the Fuel Pump: Access Panel vs. Dropping the Tank

The 2013 Chevy Malibu is part of the generation that may still have an access panel under the rear seat, but you should check your specific vehicle before starting. Some trims require dropping the fuel tank . Here’s what to know:

• With an access panel: You can reach the fuel pump by removing the rear seat cushion and lifting an access cover. This is much faster and less labor-intensive .
• Without an access panel: You will need to safely lower the fuel tank from under the vehicle, which requires a jack, jack stands, and possibly an assistant to help support the tank .

Always verify the exact procedure for your specific model year and trim using your Vehicle Identification Number (VIN) before ordering parts or starting the job .

Step-by-Step Fuel Pump Replacement Instructions

Follow these steps carefully. Safety first: Always relieve fuel system pressure before disconnecting any fuel lines. Work in a well-ventilated area, and keep a fire extinguisher nearby.

1. Prepare the Vehicle

• Disconnect the negative battery cable to prevent electrical shorts or sparks .
• Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls, or by using a fuel pressure gauge to bleed off pressure.
• Remove the rear seat cushion to access the fuel pump access panel (if applicable). If you need to drop the tank, safely raise the vehicle on jack stands.

2. Access the Fuel Pump Module

• If using an access panel: Remove the access cover screws and lift the cover. You will see the top of the fuel tank with the fuel pump module and retaining ring.
• If dropping the tank: Position a jack under the fuel tank to support its weight. Loosen and remove the fuel tank straps. Have an assistant help support the tank as you carefully lower it, ensuring no fuel lines or electrical wires are snagged .

3. Remove the Old Fuel Pump Assembly

• Locate the fuel pump module. It is usually held in place by a large retaining ring .
• Use a hammer and punch (or a specialized retaining ring removal tool) to carefully tap the retaining ring counterclockwise until it is loose .
• Carefully lift the fuel pump assembly out of the fuel tank. Be prepared for some fuel spillage—have rags or a drain pan ready .
• Disconnect the electrical connector and fuel lines from the old pump module .

4. Install the New Fuel Pump Assembly

• Important: Replace the entire fuel pump module assembly, not just the pump motor. The module includes the fuel level sending unit, a new filter sock, and a new seal. Reusing old seals is a common cause of leaks .
• Connect the electrical connector and fuel lines to the new pump module .
• Lower the new fuel pump assembly into the fuel tank. Make sure it is properly aligned before pressing it fully into place .
• Align the retaining ring and tap it clockwise until it is securely in place .

5. Reassemble and Test

• If you dropped the tank, carefully raise it back into position, reconnect the fuel lines and electrical connectors, and secure the tank straps .
• Reinstall the rear seat cushion, ensuring all clips are properly engaged .
• Reconnect the negative battery cable .
• Turn the ignition key to the "On" position (but do not start the engine) to allow the fuel pump to prime. Listen for the pump to run briefly .
• Start the engine and check for any fuel leaks. Monitor for Check Engine Light codes .

Cost Breakdown: DIY vs. Professional

Note: Prices vary by location, shop rates, and whether you need additional services like fuel filter replacement or diagnostic fees.

Important Maintenance Tips to Extend Fuel Pump Life

Once you have replaced the fuel pump, follow these practices to help it last as long as possible:

• Keep the tank above 1/4 full at all times. Gasoline acts as a coolant and lubricant for the electric fuel pump motor. Running low on fuel causes the pump to run hotter, accelerating wear .
• Replace the fuel filter on schedule. If your Malibu has a serviceable external fuel filter, replace it every 30,000 to 40,000 miles. A clogged filter forces the pump to work harder .
• Use quality fuel from reputable stations. Dirty or contaminated fuel can clog the pump inlet strainer and damage the pump motor .
• Address electrical problems promptly. Issues like alternator overcharging or low battery voltage can shorten the pump’s life .
• Avoid consistently running on fumes. Making a habit of waiting until the low fuel light comes on before refueling is one of the fastest ways to kill a pump .

Why You Should Replace the Entire Module, Not Just the Pump

Many aftermarket suppliers sell the pump motor separately at a lower price, but professionals strongly recommend replacing the entire fuel pump module assembly. Here is why:

• The pump module includes the fuel level sending unit. If the sending unit fails later, you will have to go through the entire replacement process again just to fix the fuel gauge .
• The module includes a new filter sock that filters debris before it enters the pump .
• The module comes with a new seal and lock ring, which are critical for preventing fuel leaks and vapor emissions .
• Labor savings: Installing a complete module costs no more labor than replacing just the pump, but gives you a fully renewed system .

Recommended Brand: KEMSO Fuel Pump for Your Chevy Malibu

When it comes time to replace your 2013 Chevy Malibu’s fuel pump, choosing a reliable brand is essential for long-term performance and peace of mind. KEMSO offers high-performance fuel pump modules that are designed as direct OEM replacements for Chevy Malibu models. Their products are built to meet or exceed original equipment specifications, ensuring a proper fit and reliable fuel delivery. KEMSO fuel pumps come with a lifetime warranty, giving you confidence in the quality and durability of your repair .

To see the full selection of KEMSO fuel pump modules for your 2013 Chevy Malibu, visit their website: https://www.kemsoracing.com/ . Whether you are a DIYer or working with a mechanic, choosing a KEMSO pump means you are investing in a part that is built to last.

Final Thoughts

Replacing the fuel pump on a 2013 Chevy Malibu is a manageable task for an experienced DIYer, but it requires attention to detail and safety. If you are not comfortable working with fuel systems, or if your vehicle requires dropping the fuel tank, it is wise to have a professional mechanic handle the job. The cost is significant but worthwhile to restore reliable starting and driving performance. Always use high-quality parts and replace the entire module to avoid future problems. For the best value and performance, consider KEMSO fuel pumps, available at https://www.kemsoracing.com/ .