If your 2008-2009 Chevy Avalanche 1500 is suddenly stalling, hesitating, or refusing to start, the culprit is often not the fuel pump itself, but its electronic brain: the Fuel Pump Control Module (FPCM). As a technician with over two decades of experience, I’ve seen countless owners replace a perfectly good fuel pump, only to have the same frustrating problem return. This module, often called a Fuel System Control Module (FSCM), is the real source of the issue, and we offer the definitive, hassle-free solution.
Mounted on the frame rail, these modules are exposed to relentless moisture, road salt, and vibration, leading to internal corrosion and failure. A faulty FPCM can cause a range of baffling symptoms, from a simple Check Engine Light to your truck leaving you stranded. Our replacement 2008-2009 Avalanche 1500 FPCM arrives at your door fully programmed with the latest GM software, specifically calibrated to your vehicle’s VIN. This means no expensive trip to the dealership for programming—it’s a true plug-and-play fix that restores factory performance and reliability.
A Technician’s Notebook
I remember a 2008 Sierra 1500 that came into the shop on a tow truck. The owner had already replaced the fuel pump himself, but the truck would still crank but not start. He was convinced he got a bad pump. I hooked up my scan tool and saw DTC U0109 – ‘Lost Communication with Fuel Pump Control Module’. Instead of going straight for the pump, I went to the FPCM on the driver’s side frame rail. The connectors looked fine, but a quick tap on the module housing with a screwdriver handle made the fuel pump prime. The module’s internal electronics were shot from corrosion. We installed a pre-programmed module, and the truck fired right up. It’s a classic case where diagnosing the system, not just the part, saves time and money.
Is Your Truck Showing These Symptoms?
- ✔ Engine cranks but will not start.
- ✔ Sudden stalling, especially while driving.
- ✔ Hesitation or stumbling during acceleration.
- ✔ Reduced engine power or ‘limp mode’.
- ✔ An active Check Engine Light with codes like P069E, P0230, or U0109.
- ✔ Inaccurate or erratic fuel gauge readings.
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 compatible trucks and SUVs like the Avalanche, the FPCM is mounted to the driver’s side frame rail, typically above the spare tire.
- ✔ Disconnect and Remove: Carefully unplug the electrical connectors. Use a socket wrench to remove the bolts securing the old module to the frame.
- ✔ Install the New Module: Bolt the new, pre-programmed FPCM into the same location. Ensure it’s securely fastened.
- ✔ Reconnect: Plug the electrical connectors firmly into the new module. You should hear a click.
- ✔ Final Step: Reconnect the negative battery terminal. The vehicle is now ready to start with no further programming required.
Verified Vehicle Compatibility
This module is a direct-fit replacement for a wide range of General Motors vehicles. It is compatible with the following part numbers: 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, and 25967325. Please confirm your vehicle is on the list below for guaranteed fitment.
- ✔ 2008-2009 Chevrolet Avalanche 1500
- ✔ 2007-2009 Chevrolet Silverado 1500
- ✔ 2008-2009 Chevrolet Suburban 1500
- ✔ 2008-2009 Chevrolet Tahoe
- ✔ 2008-2009 Chevrolet Express 1500 Van
- ✔ 2007-2009 GMC Sierra 1500 / Denali
- ✔ 2008-2009 GMC Yukon / Yukon XL 1500
- ✔ 2008-2009 GMC Savana 1500 Van
- ✔ 2009 GMC Acadia / Canyon
- ✔ 2008-2009 Cadillac Escalade / ESV / EXT
- ✔ 2008-2009 Hummer H2 / 2009 Hummer H3
- ✔ And more (see full list in product details)
Frequently Asked Questions
Why do I need to provide my VIN?
Your VIN is essential for us to program the module with the correct, vehicle-specific software from GM. This ensures perfect communication between the FPCM and your vehicle’s other computers, guaranteeing proper function without a trip to the dealer.
Is this part difficult to install?
No, this is a great DIY-friendly repair. Since we handle the programming, the physical installation is typically just a matter of unbolting the old module and bolting the new one in its place. It’s usually located on the frame rail and accessible with basic hand tools.
Will this fix a P069E trouble code?
Yes, the DTC P069E (Fuel Pump Control Module Requested MIL Illumination) is one of the most common codes indicating a failed FPCM. Replacing the module with our pre-programmed unit is the correct and definitive fix for this code.
Is this a new or used part?
This is a high-quality replacement part that meets or exceeds original equipment specifications. We ensure every unit is programmed with the latest software and ready for installation.
What happens if I install it without programming?
An unprogrammed FPCM will not work. The vehicle’s computer systems will not recognize it, and the fuel pump will not operate, resulting in a no-start condition. Our pre-programming service eliminates this problem entirely.