Is your 2009 Buick Enclave or other GM vehicle experiencing frustrating starting issues, stalling, or sputtering under acceleration? Before you condemn the in-tank fuel pump—a costly and labor-intensive job—consider the component that’s often the real culprit: the Fuel Pump Control Module (FPCM). As a technician with over two decades of experience, I’ve seen countless vehicles come into the bay with these exact symptoms, and a faulty FPCM is one of the most common, and commonly misdiagnosed, problems on this platform.
This module, also known as a Fuel System Control Module (FSCM), is the brain behind your fuel delivery system. It receives commands from the Engine Control Module (ECM) and precisely regulates the voltage sent to the fuel pump. This ensures optimal fuel pressure across all driving conditions. When it fails, typically due to heat and vibration from its mounting location on the vehicle’s frame, it can cause a wide range of debilitating fuel-related issues. You might get a no-start condition one day and have it run fine the next, making it a tricky problem to pin down.
The Plug-and-Play Solution You Need
The biggest hurdle when replacing this part has always been the need for programming. A new module from the dealer won’t work correctly until it’s flashed with specialized equipment. We eliminate that step entirely. When you purchase this 2009 Enclave Fuel Pump Module from us, we flash it with the latest GM-approved software specifically for your vehicle’s VIN. It arrives at your door ready for installation, saving you a trip to the dealership and hundreds of dollars in programming fees. This is the most direct and reliable way to restore your vehicle’s performance.
From the Diagnostic Bay: The Silverado That Wouldn’t Start
A customer brought in his ’08 Silverado 1500 with a classic no-start complaint. He had already spent a weekend replacing the in-tank fuel pump, a job nobody enjoys, only to have the same problem. He was frustrated and out of pocket for a part he didn’t need. I connected my scan tool and found DTC U0109 – Lost Communication with Fuel Pump Control Module. Instead of checking voltage at the pump, I went straight to the FPCM on the driver’s side frame rail. It was corroded and had clear signs of water intrusion. We installed a new, pre-programmed FPCM, and the truck fired up on the first try. This story is a perfect example of why diagnosing the FPCM first can save you significant time and money.
Common Signs of a Failing FPCM
- ✔ Engine cranks but will not start
- ✔ Extended cranking time before the engine fires
- ✔ Stalling or hesitation, especially when accelerating or under load
- ✔ Rough idle or poor engine performance
- ✔ Check Engine Light with codes like P069E, P0230, P0606, or U0109
- ✔ Reduced power message on the instrument cluster
A Straightforward Guide to Installation
- ✔ Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- ✔ Locate the Module: On most trucks and SUVs like the Tahoe or Sierra, the FPCM is mounted on the driver-side frame rail, near the spare tire. On vehicles like the Enclave or Traverse, it’s often on a rear crossmember. Consult a repair manual for your specific vehicle’s location.
- ✔ Disconnect and Remove: Unplug the electrical connectors. Be gentle with the locking tabs, as they can become brittle. Then, remove the bolts or nuts holding the module to the frame.
- ✔ Install the New Module: Mount your new, pre-programmed FPCM in the same location. It’s a good practice to clean the mounting surface and apply a thin layer of dielectric grease to the connector pins to protect against corrosion.
- ✔ Reconnect and Test: Securely plug in the electrical connectors, then reconnect the negative battery terminal. Turn the key to the ‘On’ position for a few seconds to allow the fuel pump to prime the system, then start the vehicle.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of General Motors vehicles and interchanges with part numbers 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, and 25967325. It is guaranteed to fit the following models:
- Acadia (2009)
- Avalanche 1500 (2008-2009)
- Canyon / Colorado (2009)
- Enclave (2009)
- Escalade, ESV, EXT (2008-2009)
- Express / Savana 1500 Van (2008-2009)
- Hummer H2 (2008-2009)
- Hummer H3 (2009)
- Outlook (2009)
- Sierra / Silverado 1500 Pickup (2007 New Body Style, 2008-2009)
- Sierra Denali (2008-2009)
- Suburban 1500 (2008-2009)
- Tahoe / Yukon / Yukon XL 1500 (2008-2009)
- Traverse (2009)
- Vue (2008-2009)
Frequently Asked Questions
Why do I need to provide my VIN?
Your vehicle’s VIN is required so we can program the module with the exact software and calibrations from GM for your specific make, model, and options. This ensures perfect compatibility and function right out of the box.
Is this part difficult to install for a DIYer?
No, this is a very DIY-friendly repair. The module is typically held on by just a couple of bolts on the vehicle’s frame and has simple plug-in electrical connectors. Since our module comes pre-programmed, no special tools are needed.
What happens if I install a module that isn’t programmed?
An unprogrammed module will not operate the fuel pump correctly, if at all. Your vehicle will likely not start, or it will run very poorly and set multiple diagnostic trouble codes. Our service saves you this major headache.
Is this a better option than a part from a salvage yard?
Absolutely. A used module may have the same internal flaws as your old one and will not have the latest software updates. Our new module is programmed with the newest GM software, which often corrects the issues that caused the original failure.
How do I send you my VIN after purchase?
After you complete your purchase, simply send us a message with your 17-digit VIN. We will program the module and typically ship it out within one business day.