2013-2020 Chevrolet Spark Fuel Pump: Stalling, No-Start, and the 1.2L vs 1.4L Engine Split

Critical Compatibility Warning: 1.2L vs. 1.4L Engines

• 2013-2015 Chevrolet Spark: These models use the 1.2L gasoline engine. They require a specific fuel pump assembly.
• 2016-2020 Chevrolet Spark: These models use the 1.4L gasoline engine. They require a different fuel pump assembly.

Always verify the seller has correctly identified the part for your specific year and engine before purchasing. This guide does not apply to the all-electric Spark EV model, which does not have a gasoline fuel pump.

Symptoms of a Failing Fuel Pump

A fuel pump in a Chevy Spark usually gives warning signs before it fails completely. Recognizing these symptoms can prevent you from being stranded.

• Engine Cranks but Won't Start: 🎬 Watch: How to diagnose a crank-no-start fuel pump issue This is the most common sign of a completely dead fuel pump. You'll hear the engine turn over, but it never fires up because it's not getting any fuel.
• Engine Stalling: The engine may start and run, but then stall unexpectedly, especially at idle or low speeds. This can be very dangerous if it happens in traffic.
• Hesitation or Sputtering: When you press the gas pedal, the car may hesitate, sputter, or jerk as the failing pump struggles to supply enough fuel.
• Loud Whining Noise: A noticeable humming or whining sound coming from the rear seat area (above the fuel tank) is a classic sign of a pump motor that is working too hard and about to fail. A healthy pump makes a very faint hum for two seconds when you first turn the key.
• Loss of Power: The car may feel sluggish, especially when accelerating or driving up hills.
• Check Engine Light: A failing pump can trigger the check engine light. A common trouble code is P0087 (Fuel Rail/System Pressure - Too Low), which directly points to a fuel delivery issue.

Known Issues, Recalls, and Technical Service Bulletins (TSBs)

As of mid-2026, there are no active NHTSA safety recalls specifically for the fuel pump on any 2013-2020 Chevrolet Spark model. However, owner forums and mechanic reports indicate that fuel pump failures are not uncommon.

Known Weak Point: Electrical Connector

A frequently reported issue is a corroded or melted electrical connector on top of the fuel pump assembly. This poor connection can cause intermittent power loss, leading to stalling, or it can cut power completely, causing a no-start condition. 🎬 Watch: Troubleshooting a Chevy Spark no-start electrical issue This is a critical inspection point for both diagnosis and when buying a used part.

Buying a Used Fuel Pump: What to Check

A low-mileage, recycled OEM fuel pump can be a reliable and cost-effective alternative to expensive new parts. However, you must inspect it carefully.

1. Verify the Part Number and Fitment: This is the most important step. Double-check that the part came from a Spark with the same engine as yours (1.2L for 2013-2015, 1.4L for 2016-2020). Cross-reference OEM part numbers if possible.
2. Inspect the Electrical Connector: Look closely at the plastic connector on the top of the unit. Reject any pump that shows signs of browning, melting, charring, or green/white corrosion on the pins. This indicates it was overheating or had a bad connection and is likely to fail soon.
3. Check the Plastic Housing: The main body of the pump is plastic. Inspect it for any cracks, especially around the fuel line ports and the mounting flange. A cracked housing can leak fuel vapors, which is a safety hazard.
4. Examine the Float and Sending Unit: Make sure the metal float arm moves freely and isn't bent or damaged. This part controls your fuel gauge, so if it's broken, your gauge won't work correctly.
5. Check the Fuel Strainer: The small filter sock at the bottom of the pump should be present. While it's best practice to install a new one, a very dark or debris-filled strainer on the used unit suggests it came from a tank with a lot of sediment.

Replacement Overview & Difficulty

• Difficulty Rating: 3 out of 5
• Estimated Time: 1.5 - 2.5 hours
• DIY Feasible: Yes

Replacing the fuel pump on a Chevy Spark is a manageable DIY job for someone with basic mechanical skills. The biggest advantage is that the pump is accessible from an access panel under the rear seat cushion, so you do not have to drop the entire fuel tank.

General Steps:

1. Disconnect the negative battery terminal.
2. Relieve the fuel system pressure to prevent fuel from spraying out.
3. Remove the rear seat bottom cushion to expose the fuel pump access panel.
4. Remove the panel, then disconnect the electrical connector and fuel line.
5. Unscrew the large plastic locking ring that holds the pump in place. This may require a special tool, though careful use of a brass punch and hammer is a common alternative.
6. Carefully lift the old pump assembly out of the tank, being mindful not to bend the float arm.
7. Install the new pump with a new tank seal/gasket. This is mandatory to prevent fuel leaks and vapor smells.
8. Reassemble in reverse order. Prime the pump by turning the key to the 'On' position (without starting) a few times before starting the engine.

Cost to Replace a Chevrolet Spark Fuel Pump

Prices vary based on your location and which part you choose. The significant cost difference between model years is due to the different part numbers for the 1.2L and 1.4L engines.

Frequently Asked Questions (FAQ)