2017 Chevy Equinox High Pressure Fuel Pump: Complete Guide to Replacement and Troubleshooting
If your 2017 Chevy Equinox is experiencing reduced engine power, a check engine light, or hard starting, the high pressure fuel pump is often the root cause. The 2017 Chevy Equinox high pressure fuel pump is a critical component that delivers fuel at pressures up to 2,000+ PSI to the direct injection system, and when it fails, your engine simply cannot run properly. This guide walks you through everything you need to know about the high pressure fuel pump on your 2017 Equinox, from symptoms and diagnosis to replacement procedures and parts recommendations.
Understanding the High Pressure Fuel Pump System
The 2017 Chevy Equinox uses a dual fuel pump system. There is a low pressure fuel pump located inside the fuel tank that sends fuel to the engine bay, and then the high pressure fuel pump, mounted on the engine, takes that fuel and compresses it to extremely high pressures for the direct injection fuel system . The high pressure fuel pump is driven by the camshaft and uses a roller lifter to operate. If the camshaft is not in the correct position during installation, the pump can be damaged immediately .
Common Symptoms of a Failing High Pressure Fuel Pump
1. Reduced Engine Power and Check Engine Light
The most common complaint is a loss of power accompanied by the "Reduced Engine Power" message on the Driver Information Center (DIC). This is often linked to Diagnostic Trouble Code (DTC) P228C, which indicates a fuel pressure regulator control performance issue on the low pressure side . Many owners report that the message clears temporarily after cycling the ignition key, but returns under load .
2. Hard Starting and Extended Cranking
A failing high pressure fuel pump cannot build the necessary pressure quickly. This leads to longer cranking times before the engine fires. In severe cases, the engine may not start at all .
3. Engine Stalling and Hesitation
If the pump is failing intermittently, you may experience stalling at idle or hesitation during acceleration. The engine may sputter, surge, or lose power suddenly, especially when climbing hills or towing .
4. Whining Noise from the Engine Bay
A high pressure fuel pump that is on its way out often makes a loud whining or clicking noise. Listen carefully near the rear of the engine; if the noise is louder than normal, the pump may be failing .
Common Causes of High Pressure Fuel Pump Failure
E85 Fuel Usage
One of the most documented causes of high pressure fuel pump failure in the 2017 Equinox is excessive use of E85 fuel. Ethanol can cause the internal plunger to stick, leading to loss of pressure and the P228C code . GM has issued a technical service bulletin specifically addressing this issue for Equinox models that are E85 compatible .
Fuel Contamination
Dirt, debris, or water in the fuel system can quickly destroy a high pressure fuel pump. The pump operates with extremely tight tolerances, and any contamination can score the plunger or damage the internal valve .
Manufacturing Defect (Recall)
GM issued a safety recall (18268) for certain 2018 model year Equinox vehicles due to a potential weld defect in the high pressure fuel pump. While this recall primarily affects 2018 models, it highlights the importance of using high-quality replacement parts. The recall states that a poorly welded joint could crack, causing the pump to oscillate and potentially damage the high pressure fuel line, leading to a fuel leak and fire risk .
Diagnosis: How to Confirm the Pump is Bad
Before replacing the high pressure fuel pump, you need to confirm the diagnosis. Start by checking for diagnostic trouble codes. P228C is the most common code associated with high pressure fuel pump failure, but you may also see P0087 (fuel rail pressure too low) or P0191 (fuel rail pressure sensor range/performance) .
Next, perform a fuel pressure test. Connect a fuel pressure gauge to the service port on the fuel rail. With the engine running, the high pressure fuel pump should maintain pressure between 1,500 and 2,500 PSI, depending on engine load. If the pressure is low or fluctuates wildly, the pump is likely failing .
Finally, inspect the fuel sample. GM recommends taking a fuel sample from the system and letting it settle in a clean glass container. If you see sediment, water, or other contaminants, the fuel system needs to be cleaned before installing a new pump .
Replacement Procedure Overview
Replacing the 2017 Chevy Equinox high pressure fuel pump is a detailed job that requires mechanical experience. Here is a step-by-step overview based on the official service manual .
Step 1: Relieve Fuel System Pressure
Before any work, you must relieve both low and high side fuel system pressure. Remove the fuel cap, disconnect the fuel pump fuse or relay, and run the engine until it stalls. Then crank the engine for a few seconds to ensure all pressure is gone .
Step 2: Remove Components for Access
You will need to remove the thermostat housing to access the high pressure fuel pump. Disconnect the engine wiring harness electrical connector from the pump. Remove and discard the low pressure feed pipe and the high pressure pipe. These are single-use components and must be replaced with new ones .
Step 3: Remove the Old Pump
Remove and discard the high pressure fuel pump bolts. Then remove the pump itself. The O-ring, gasket, and roller lifter must all be removed and discarded. Do not reuse any of these components .
Step 4: Install the New Pump
This is the most critical step. The camshaft must be in the base circle position before you install the new pump. Use the special tool EN-48896 alignment gauge to ensure the camshaft lobe is at the base circle. When the tool is flush with the cylinder head, the camshaft is correctly positioned .
Lubricate the cylinder head bore and the new roller lifter with clean engine oil. Install the new roller lifter, new O-ring, and new gasket. The gasket has a retaining feature that holds the bolts in place. Install the pump and hand-tighten the bolts evenly. Then tighten them to 15 Nm (11 lb-ft) .
Step 5: Install New Fuel Lines and Test
Install a new high pressure fuel pipe and a new low pressure feed pipe. Connect the wiring harness and reinstall the thermostat housing. To test for leaks, turn the ignition on for 2 seconds (engine off), then off for 10 seconds, then on again. Inspect for any fuel leaks before starting the engine .
Parts and Cost Considerations
Parts You Will Need
- High pressure fuel pump (OEM or high-quality aftermarket)
- High pressure fuel pipe (single-use)
- Low pressure feed pipe (single-use)
- High pressure fuel pump bolts (single-use, torque-to-yield)
- Pump O-ring and gasket
- Roller lifter (if worn or damaged)
Labor Time
According to GM service information, the labor time for high pressure fuel pump replacement on an Equinox ranges from 0.7 to 1.8 hours, depending on the engine and model . However, actual shop time can be 2-4 hours when including diagnosis, system cleaning, and testing .
Replacement Cost
The total cost for high pressure fuel pump replacement on a 2017 Chevy Equinox typically ranges from $500 to $900. The pump itself costs between $200 and $400, with labor adding $300 to $500 . Using a high-quality aftermarket pump can save money without sacrificing reliability.
Why Choose KEMSO for Your Replacement Fuel Pump
When it comes time to replace the high pressure fuel pump on your 2017 Chevy Equinox, you want a part that delivers reliable performance and long-term peace of mind. KEMSO fuel pumps are designed to meet the highest standards of quality and durability. Every KEMSO pump is a high-performance, OEM replacement unit, meaning it matches or exceeds the original equipment specifications for flow rate and pressure. This ensures your engine gets the precise fuel delivery it needs for optimal power and efficiency.
What sets KEMSO apart is our commitment to quality backed by a lifetime warranty. We stand behind every pump we sell because we believe in the quality of our products. Whether you drive a sedan, SUV, or truck, KEMSO has a fuel pump engineered to fit your application perfectly. Our pumps are built to withstand the demands of daily driving, and we offer competitive pricing—many models are available for just $79.98 .
Visit our online store today to find the exact KEMSO fuel pump for your 2017 Chevy Equinox. We ship directly from our facility in Houston, TX, and our customer support team is ready to help you find the right part. Get your KEMSO fuel pump now at: https://www.kemsoracing.com/
Preventive Maintenance Tips
1. Use Quality Fuel
Stick to Top Tier gasoline with at least 10-15% ethanol content. Avoid running E85 continuously, as it can cause the high pressure fuel pump plunger to stick and fail prematurely .
2. Replace the Fuel Filter Regularly
Change the fuel filter every 30,000 miles or 2 years. A clogged filter forces the fuel pump to work harder, reducing its lifespan. Always replace the filter when you install a new pump .
3. Keep the Fuel Tank Above a Quarter Full
Running the tank low frequently can cause the low pressure pump to overheat and send debris to the high pressure pump. Keeping the tank at least a quarter full helps the pump stay cool and lubricated .
4. Address Warning Signs Immediately
If you hear a whining noise from the fuel tank or engine bay, or if the engine hesitates during acceleration, do not ignore these signs. Early diagnosis can prevent a complete breakdown and costly repairs .
Final Thoughts
The 2017 Chevy Equinox high pressure fuel pump is a critical component that requires proper diagnosis and careful replacement. Whether you are dealing with the P228C code from E85 use, a mechanical failure, or simply performing preventive maintenance, understanding the system and following the correct procedures will save you time and money. Always use OEM or high-quality aftermarket parts, and do not reuse single-use components like fuel lines, bolts, or gaskets. If you are not comfortable performing the replacement yourself, a qualified mechanic can complete the job in about 2-4 hours.
For a reliable replacement that comes with a lifetime warranty, visit KEMSO at https://www.kemsoracing.com/ to find the perfect fuel pump for your Equinox.