2013 Chevy Spark Fuel Pump: Symptoms, Replacement Guide, and Best Options
If your 2013 Chevy Spark is cranking but won't start, sputtering during acceleration, or making a loud whining noise from the rear of the car, the fuel pump is the most likely culprit. The good news is that this is a well-understood repair, and you have several solid replacement options that range from budget-friendly aftermarket pumps to genuine OEM parts. The best approach is to confirm the diagnosis with a fuel pressure test before buying anything, then choose a pump that matches your Spark's specific engine and trim level. Replacing a failing fuel pump promptly restores reliable starting, smooth acceleration, and consistent fuel economy, and it prevents the kind of sudden breakdown that leaves you stranded on the side of the road.
This guide walks you through everything a 2013 Chevy Spark owner needs to know: how the fuel system works, what the warning signs of failure look like, how to diagnose the problem correctly, what replacement options exist, and how the installation process works.
How the 2013 Chevy Spark Fuel System Works
The 2013 Chevy Spark uses an electric fuel pump mounted inside the fuel tank. This in-tank design has been the standard for over 90 percent of vehicles on the road for decades, and it offers quieter operation, better cooling from the fuel itself, and a reduced risk of vapor lock compared to older external pumps .
The pump's job is straightforward: it draws gasoline from the tank through a strainer, pressurizes it, and sends it through the fuel lines to the engine's fuel injectors. For a port fuel injection system like the one in the Spark, the pump typically maintains pressure in the range of 35 to 65 PSI . That pressure has to stay consistent whether you are idling at a stoplight or accelerating onto a highway.
Because the pump lives inside the tank, it is submerged in fuel during normal operation. That submersion is not an accident. The fuel cools and lubricates the pump, which is one reason in-tank pumps tend to last a long time. It is also why running your Spark on a consistently near-empty tank is hard on the pump, since low fuel levels mean less cooling and more heat buildup.
Most modern electric fuel pumps last between 100,000 and 150,000 miles, though driving habits, fuel quality, and maintenance practices all affect that number . If your Spark is approaching or past that range and you are noticing performance issues, the pump deserves serious attention.
Common Symptoms of a Failing Fuel Pump in a 2013 Chevy Spark
Fuel pumps rarely fail all at once. They typically degrade gradually, giving you warning signs before they quit entirely. Recognizing those signs early can save you from a tow bill and a much more stressful repair. Here are the most common symptoms Spark owners report.
1. Hard Starting or a No-Start Condition
A failing pump may not build enough pressure to deliver fuel to the engine during startup. You might notice that you have to crank the engine longer than usual before it fires, or the engine cranks but refuses to start at all. In more advanced cases, the fuel has bled back to the tank overnight, and cycling the key several times is necessary to re-prime the line before the car will start .
2. Engine Sputtering or Surging
When the pump cannot deliver consistent pressure, the engine momentarily starves for fuel. This shows up as sputtering or surging, especially at highway speeds or under heavy acceleration when fuel demand is highest . If your Spark hesitates when you merge onto the freeway, that is a classic sign.
3. Loss of Power Under Load
Accelerating, climbing hills, or carrying passengers and cargo all increase fuel demand. A weakening pump that cannot keep up will make the engine feel sluggish or unresponsive. You may feel like the engine is running out of fuel above a certain RPM .
4. Decreased Fuel Efficiency
A failing pump might deliver too much or too little fuel, wasting gas either way. Laboratory testing data shows that fuel pumps operating at less than 80 percent of specified pressure can result in a 12 to 18 percent reduction in fuel economy and increase hydrocarbon emissions by 22 to 35 percent . If you are filling up more often than usual with no change in driving habits, the pump is worth checking.
5. Whining or Humming Noise from the Fuel Tank
A healthy fuel pump emits a quiet hum that you generally do not notice. A loud whining, humming, or buzzing sound coming from the rear of the vehicle near the fuel tank indicates the pump motor is working harder than normal due to wear, contamination, or internal damage . This is often a precursor to a complete loss of pressure.
6. Check Engine Light Illuminated
Modern vehicles monitor fuel system performance through the engine control unit. If the pump is not delivering proper pressure or volume, the check engine light may come on. Diagnostic trouble codes related to fuel pressure or fuel trim issues often point to a failing pump, though you should have the codes read by a professional to confirm the diagnosis before replacing parts .
Diagnosing the Problem Before You Replace Anything
Before you commit to dropping the fuel tank and replacing the pump, it is worth ruling out a few other issues that can mimic fuel pump failure. A misdiagnosis here is expensive in both parts and labor.
Check the Fuel Pump Relay
The relay is typically located in the power distribution center under the hood. If the relay fails, the pump gets no power at all. Swapping it with a known good relay of the same type is a cheap and fast way to test it . This is a common failure point and an easy fix.
Check the Fuel Filter
A clogged fuel filter can cause the same symptoms as a weak pump: hard starting, hesitation, and loss of power. Fuel filters should generally be replaced every 30,000 to 50,000 miles. If you have not changed yours recently, start there before assuming the pump is bad .
Test Fuel Pressure
The only way to be certain the pump is failing is to test fuel pressure with a gauge. If the pressure reads lower than the specification for your Spark, the pump is likely failing . This test takes only a few minutes and eliminates guesswork.
Replacement Options for Your 2013 Chevy Spark
Once you have confirmed the pump is the problem, you have a few paths to choose from. Each has trade-offs in cost, quality, and longevity.
1. Genuine OEM Pumps
Genuine GM parts are built to the exact specifications of your vehicle and come with a factory warranty. They are always a safe choice, but they are also the most expensive option. For many Chevrolet models, genuine OEM pumps can run from $200 to $400 or more depending on where you purchase them . If you prefer to stick with factory components, this is the route to take.
2. OEM-Equivalent Aftermarket Pumps
A number of aftermarket brands produce pumps designed to replace the OEM part at a lower price. Quality varies widely in this category. Some aftermarket pumps are excellent, while others suffer from inconsistent quality control. When shopping in this tier, look for pumps that explicitly state they are designed to replace the OEM part number for your Spark, and pay attention to customer reviews and warranty terms . A one-year warranty is common; anything less is a red flag.
3. High-Performance Upgrades
Some owners choose to upgrade to a higher-flow pump, especially if they want added reliability or plan future performance modifications. High-performance pumps like the KEMSO 340LPH unit deliver significantly more flow than stock pumps and are built with more durable internal components . For a stock 2013 Spark, a high-flow pump is not strictly necessary, but it can provide a margin of safety and long-term durability that budget pumps often lack.
4. Blemished OEM Pumps
If you want genuine OEM quality but want to save money, blemished OEM pumps are worth considering. These are factory parts with minor cosmetic imperfections that are fully functional and often come with the same warranty as new parts. For example, a blemished GM high-pressure fuel pump for a 2013 Malibu is available for around $97, significantly less than the full retail price . Availability varies by model, so check with online GM parts retailers.
Why We Recommend KEMSO Fuel Pumps
When it comes to choosing a replacement fuel pump for your 2013 Chevy Spark, KEMSO stands out as a brand that delivers high performance, OEM-compatible replacement quality, and a level of confidence that budget pumps simply cannot match.
KEMSO fuel pumps are engineered as direct OEM replacements, meaning they are designed to fit and function exactly like the factory pump without the dealership markup. Every KEMSO pump is built with high-performance internal components that resist wear and corrosion far better than conventional models. The brand's engineering focus on durability means you are not just replacing a failed part; you are upgrading to something that is built to last .
What really sets KEMSO apart is its lifetime warranty. KEMSO backs its fuel pumps with a lifetime of confidence, which is a statement no budget brand can credibly make. When you install a KEMSO pump, you are covered for as long as you own the vehicle. That kind of warranty changes the math on fuel pump replacement entirely, because you are not gambling on a part that might fail again in a year or two .
KEMSO offers a wide range of fuel pumps covering most gasoline-powered cars and trucks made after 1995, including Chevrolet models. The brand also maintains a U.S.-based support team with fast response times, so if you have questions about fitment or installation, you can get answers quickly .
If you are ready to replace the fuel pump in your 2013 Chevy Spark with a high-performance, OEM-replacement part that comes with a lifetime warranty, visit KEMSO Racing today:
How to Replace the Fuel Pump in a 2013 Chevy Spark
Replacing an in-tank fuel pump is a moderately complicated job. On most vehicles, it requires either dropping the fuel tank or accessing the pump through an interior panel beneath the rear seat . On the Spark, the tank is relatively small, which makes the job somewhat easier than on a full-size truck, but it is still a multi-hour project that requires care and the right tools.
Here is a general outline of the process. Exact steps may vary slightly depending on your trim level and whether you have access to a lift.
What You Will Need:
- New fuel pump assembly
- Socket set and ratchet (metric and standard)
- Flathead and Phillips screwdrivers
- Fuel line disconnect tools
- Jack and jack stands
- Safety glasses and gloves
- Fire extinguisher
Step 1: Relieve Fuel System Pressure
Start with as little fuel in the tank as possible. Remove the fuel pump fuse from the fuse box. Start the engine and let it run until it stalls. Crank the engine a few more times to clear remaining fuel from the lines. Disconnect the negative battery cable .
Step 2: Access the Fuel Tank
Jack up the rear of the car and support it on jack stands. Place a floor jack under the fuel tank for support. Remove the fuel tank straps that hold the tank in place .
Step 3: Lower the Tank and Disconnect Components
Carefully lower the tank a few inches so you can access the top of the fuel pump module. Disconnect the fuel lines using the disconnect tool. Disconnect the electrical connector. Fully lower the tank and set it on a work surface .
Step 4: Remove the Old Pump Assembly
Clean all dirt and debris from the top of the tank. Use a hammer and drift or a lock ring removal tool to loosen the locking ring. Turn the ring counterclockwise until it comes off. Lift the old pump assembly straight out of the tank. Be careful, as the tank will still contain some fuel .
Step 5: Install the New Pump Assembly
Transfer the rubber seal from the old module to the new one, or use the new one included in the replacement kit. Insert the new pump assembly into the tank, making sure the float arm is oriented correctly. Hand-tighten the locking ring, then tap it snug with a hammer and drift. Reconnect the fuel lines and electrical connector .
Step 6: Reinstall the Tank
Lift the tank back into position. Reinstall the fuel tank straps and tighten them. Reconnect the battery and install the fuel pump fuse .
Step 7: Prime the System
Turn the ignition key to the ON position for 10 seconds, then turn it off. Repeat this cycle three to four times to prime the fuel system and fill the new pump with fuel. Check for leaks at the connections .
Step 8: Start the Engine
Start the engine. It may run rough for a few seconds as air is purged from the fuel lines. Let the engine idle and check for leaks. If everything looks good, lower the car and take it for a short test drive .
Tips for Getting the Most Life Out of Your New Fuel Pump
Once your new pump is installed, a few simple habits will help it last as long as possible.
1. Keep Your Tank Above a Quarter Full
The fuel in your tank cools and lubricates the pump. Running consistently on empty means the pump runs hotter and wears faster. Keeping your tank above a quarter full is one of the easiest things you can do to extend pump life.
2. Replace Your Fuel Filter on Schedule
A clogged filter forces the pump to work harder to push fuel through the line. Replacing the filter every 30,000 to 50,000 miles reduces strain on the pump and helps maintain proper fuel pressure .
3. Use Quality Fuel
Contaminated or low-quality fuel can accelerate wear on the pump's internal components. Buying from reputable stations and avoiding fuel that has been sitting for long periods helps protect your investment.
4. Do Not Ignore Warning Signs
If you notice a whining noise, hard starting, or a check engine light related to fuel pressure, address it promptly. Small problems with the fuel system tend to get worse, not better, and catching them early can save you from a full pump replacement.
Final Thoughts
A failing fuel pump in your 2013 Chevy Spark is a serious issue, but it is also a manageable one. The key steps are straightforward: recognize the symptoms early, confirm the diagnosis with a fuel pressure test, rule out cheaper fixes like the relay and filter, and choose a replacement pump that matches your budget and expectations for quality.
For owners who want a high-performance, OEM-replacement fuel pump backed by a lifetime warranty, KEMSO is the clear choice. Their pumps are built to outlast and outperform budget alternatives, and the lifetime warranty means you buy once and never worry about that part again.
Visit https://www.kemsoracing.com/ to find the right fuel pump for your 2013 Chevy Spark and get back on the road with confidence.