Fuel Pump for 2015 Chevy Equinox: Complete Replacement Guide

If you own a 2015 Chevy Equinox, your vehicle uses a dual fuel pump system that combines an in-tank low-pressure pump with a high-pressure fuel pump (HPFP) mounted on the engine, depending on which engine you have. The 2015 Equinox with the 2.4L four-cylinder or 3.6L V6 engine relies on a high-pressure fuel pump as part of its direct injection system . When either pump fails, you'll notice symptoms like hard starting, rough idle, loss of power, or a check engine light. Replacing the fuel pump is a manageable job if you follow the right steps, but it's critical to understand the system before you start.

Understanding Your 2015 Equinox Fuel System

The 2015 Chevy Equinox is equipped with two distinct fuel pumps that work together. The primary pump is located inside the fuel tank, and it sends fuel at low pressure to the engine bay. The secondary pump is the high-pressure fuel pump (HPFP), which is mounted on the engine and driven by the camshaft . This HPFP raises fuel pressure to between 500 and 2,200 psi, which is necessary for the direct injection system to atomize fuel properly .

Key components of the system include:

  • In-tank fuel pump module: sits inside the fuel tank and includes the pump, fuel level sender, and strainer
  • High-pressure fuel pump (HPFP): mounted on the engine, typically on the 2.4L Ecotec engine, and driven by a camshaft lobe
  • Fuel rail and injectors: distribute high-pressure fuel directly into the combustion chambers
  • Fuel pressure sensor and ECM: monitor and adjust fuel pressure based on engine demand

This dual-pump design ensures consistent fuel delivery, especially during high-demand situations like acceleration or towing, but it also means two potential failure points .

Common Symptoms of a Failing Fuel Pump

When your fuel pump starts to fail, the symptoms are usually noticeable. The most common signs include:

  1. Hard starting or extended cranking: the engine struggles to start, especially in cold weather, because the fuel system cannot build enough pressure
  2. Rough idle or stalling: inconsistent fuel delivery causes the engine to idle unevenly or stall at stops
  3. Loss of power during acceleration: the engine hesitates or lacks power when you press the gas pedal
  4. Check engine light: the ECM stores trouble codes like P0087 (fuel rail/system pressure too low) or P0088 (fuel rail/system pressure too high)
  5. Unusual whining noise from the fuel tank or engine bay: a failing pump often makes a loud humming or buzzing sound

If you notice any of these symptoms, have a professional mechanic perform a fuel pressure test to confirm which pump is failing before ordering parts.

Step-by-Step Fuel Pump Replacement Procedure

Replacing the fuel pump in a 2015 Chevy Equinox requires careful preparation and the right tools. Always prioritize safety when working with gasoline. Here is a step-by-step guide based on standard service procedures .

Safety Precautions Before You Start

  • Work in a well-ventilated area away from open flames, sparks, or any ignition sources
  • Have a Class B fire extinguisher (such as a 5 lb CO2 extinguisher) readily available
  • Wear safety glasses and gloves
  • Disconnect the negative battery cable before starting any work
  • Use an approved fuel transfer pump to drain the tank, and store fuel in approved containers

Step 1: Relieve Fuel System Pressure

  1. Remove the fuel cap from the tank to relieve tank pressure
  2. Locate the fuel pump relay in the power distribution block and remove it
  3. Crank the engine several times to bleed down the fuel system pressure. The engine will start and stall a few times. Continue cranking until the engine no longer tries to start
  4. Disconnect the negative battery cable and position it so it cannot accidentally make contact with the battery post

Step 2: Drain the Fuel Tank

Use an OSHA-approved fuel transfer pump to drain as much fuel as possible from the tank through the filler neck. All fuel must be removed before lowering the tank .

Step 3: Remove the Fuel Tank

  1. Remove any skid plates or shields that may interfere with tank removal
  2. Disconnect the fuel filler hose and vent hoses from the tank
  3. Support the fuel tank with a jack and a block of wood
  4. Remove the tank retaining straps or bolts, then carefully lower the tank enough to access the fuel pump module
  5. Disconnect the fuel lines and electrical wiring to the pump module
  6. Lower the tank completely out of the vehicle

Step 4: Remove the Old Fuel Pump Module

  1. Clean any debris from around the tank unit area on the fuel tank
  2. Using the appropriate tool (such as the CH-48482 wrench for some models), remove the cam lock ring by turning it counterclockwise
  3. Carefully lift the pump module out of the tank, noting the orientation of the fuel outlet tube
  4. Remove and discard the O-ring and gasket

Step 5: Install the New Fuel Pump

  1. Compare the new pump with the original to make sure you have the correct part
  2. Install a new O-ring and gasket onto the tank flange
  3. Slide the new pump module into the tank, being careful not to bend the fuel level sender arm
  4. Install the cam lock ring by turning it clockwise, and tighten it securely
  5. Reconnect the fuel lines and electrical wiring
  6. Raise the tank back into position, reinstall the retaining straps, and reconnect the filler and vent hoses

Step 6: Test for Leaks and Prime the System

  1. Reconnect the negative battery cable
  2. Turn the ignition to the ON position (without starting the engine) for 2 seconds, then OFF for 10 seconds. Repeat this cycle a few times to pressurize the system
  3. Check for any fuel leaks around the pump module, fuel lines, and connections
  4. Start the engine and monitor for proper operation. If the engine runs smoothly and no leaks are present, the replacement is successful

High-Pressure Fuel Pump Replacement (HPFP)

If your issues are with the high-pressure fuel pump on the engine, the replacement procedure is different. The HPFP is located on the engine and is driven by the camshaft . Here are the key steps:

  1. Relieve the low and high side fuel system pressure
  2. Remove the thermostat housing for access
  3. Disconnect the engine wiring harness electrical connector from the HPFP
  4. Remove the low-pressure feed pipe and high-pressure pipe (both must be discarded and replaced with new ones)
  5. Remove and discard the HPFP bolts, O-ring, and gasket
  6. Remove the pump and the roller lifter underneath
  7. Important: Before installing the new pump, ensure the camshaft is in the base circle position. Use the EN-48896 alignment gauge to verify that the camshaft lobe is at its lowest point
  8. Lubricate the cylinder head bore and roller lifter with camshaft prelube
  9. Install a new roller lifter, O-ring, gasket, and pump. Tighten the retaining bolts to 15 Nm (11 lb-ft)
  10. Install new high-pressure and low-pressure pipes, connect the wiring, and reinstall the thermostat housing

Recommended Parts to Replace at the Same Time

When replacing your fuel pump, it is smart to replace several other components that are cheap now but expensive to do later. These include:

  • Fuel filter: a clogged filter strains the new pump and shortens its life; cost is $10 to $50
  • Fuel pump strainer (sock): often included with the pump, but make sure it is new; cost $5 to $20
  • Fuel tank gasket/O-ring: prevents leaks and fuel vapors; cost $5 to $30
  • Fuel lines and clamps: old rubber cracks and causes leaks; cost $20 to $100
  • Fuel tank sending unit: if your gas gauge is acting up, now is the time to replace it; cost $50 to $200

Adding these items costs $50 to $150 extra but saves you from doing the job twice .

Why You Should Choose KEMSO Fuel Pump for Your 2015 Chevy Equinox

When it comes to reliability and performance, not all fuel pump brands deliver the same level of quality. KEMSO Racing offers high-performance fuel pumps that meet or exceed OEM specifications at competitive prices. Every KEMSO fuel pump is designed as a direct OEM replacement, meaning it fits your 2015 Chevy Equinox perfectly without modifications. Whether you drive a daily commuter or a high-performance build, KEMSO has the right pump for your needs.

Why choose KEMSO:

  • High-performance engineering: built to deliver consistent fuel pressure under all driving conditions
  • OEM replacement quality: exact fit for your vehicle's make and model
  • Lifetime warranty: KEMSO stands behind their products with a lifetime guarantee, giving you complete confidence in your purchase

Browse the full KEMSO fuel pump catalog at https://www.kemsoracing.com/ to find the right pump for your vehicle. With fast shipping and expert support, KEMSO makes it easy to get back on the road with reliable fuel delivery.

Final Tips for a Successful Replacement

  1. Confirm the diagnosis: get a fuel pressure test to make sure the pump is actually bad before buying parts
  2. Check your warranty: some extended warranties cover fuel pump replacement
  3. Use quality fuel: cheap gas with high ethanol content can damage the pump over time
  4. Keep your gas tank at least a quarter full: running low frequently allows debris to enter the pump and causes overheating
  5. Change your fuel filter regularly: every 30,000 to 50,000 miles is a good rule

Replacing the fuel pump in your 2015 Chevy Equinox is an investment in your vehicle's reliability. Cutting corners on quality can leave you stranded and paying for the job twice. For the best combination of performance, fit, and warranty protection, visit https://www.kemsoracing.com/ and find your perfect fuel pump today.


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