Restore Your Truck’s Power and Reliability
Is your 2008-2009 Chevrolet Avalanche 1500 experiencing sudden stalling, hard starting, or a frustrating loss of power? Before you condemn the fuel pump, the real culprit is often the Fuel Pump Control Module (FPCM). Located on the frame rail, this critical component is exposed to harsh road conditions, leading to corrosion and electronic failure. This results in erratic fuel pressure, causing a host of drivability problems that can leave you stranded. In my 20+ years of diagnostics, I’ve seen hundreds of these modules fail, often tricking owners into replacing a perfectly good fuel pump.
This isn’t just a replacement part; it’s a complete solution. We take the guesswork and dealer hassle out of the repair. Simply provide your vehicle’s VIN during checkout, and our technicians will program this module with the very latest GM software updates specific to your truck. This ensures optimal performance, fuel efficiency, and seamless communication with your vehicle’s computer. It arrives at your door ready for a true plug-and-play installation, saving you a costly trip to the dealership for programming.
From the Diagnostic Bay: The Intermittent Stall Case
A customer brought in his ’08 Sierra with a problem that was driving him crazy: it would run fine for days, then suddenly stall at a red light and refuse to restart for 10 minutes. There were no consistent codes, just an occasional U0109 (Lost Communication with Fuel Pump Control Module). Instead of just throwing parts at it, we monitored the FPCM data stream. We saw the commanded fuel pressure drop to zero right before it would stall. A quick inspection under the truck revealed the classic FPCM failure—the casing was corroded and the connector was full of green crust. A new, pre-programmed module like this one had him back on the road permanently in under 30 minutes. It’s a textbook failure for these GM trucks.
Is Your Truck Showing These Telltale Signs?
A failing FPCM can mimic other issues, but these are the most common symptoms I see in the shop. If your vehicle is experiencing any of the following, this module is the likely solution.
- ✔ Engine stalls unexpectedly, especially at idle or under load.
- ✔ Extended cranking time before the engine starts.
- ✔ Complete no-start condition, even though the engine turns over.
- ✔ Noticeable hesitation or stumbling during acceleration.
- ✔ Check Engine Light illuminated with codes like P069E, P0230, P0606, or U0109.
- ✔ Reduced engine power and poor fuel economy.
A Straightforward Guide to Installation
You don’t need to be a master mechanic to replace this module. With basic hand tools, you can complete this job in your own driveway. This is one of the most accessible and rewarding DIY repairs you can perform on your truck.
- 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, the FPCM is mounted to the driver-side frame rail, typically near the spare tire.
- Disconnect and Unbolt: Carefully unplug the electrical connectors. Use a socket wrench to remove the bolts or nuts securing the old module to the frame.
- Install the New Module: Mount your new, pre-programmed FPCM in the same location and secure it with the original hardware.
- Reconnect and Finish: Plug the electrical connectors firmly into the new module. Reconnect your battery terminal. Your vehicle is now ready to start with no further programming required.
Verified Fitment for a Wide Range of GM Vehicles
This module, part number 25866052, is a direct replacement for a broad family of GM vehicles and is interchangeable with part numbers 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, and 25967325. Please confirm your vehicle is on the list below for guaranteed compatibility.
- 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)
- Silverado 1500 Pickup (2007 New Body Style, 2008-2009)
- Sierra 1500 Pickup (2007 New Body Style, 2008-2009)
- Sierra Denali (2008-2009)
- Suburban 1500 (2008-2009)
- Tahoe (2008-2009)
- Traverse (2009)
- Vue (2008-2009)
- Yukon / Yukon XL 1500 (2008-2009)
Frequently Asked Questions
What does ‘pre-programmed’ mean? Do I still need to go to a dealer?
‘Pre-programmed’ means we flash the module with your vehicle’s specific VIN and the latest GM software before we ship it. This makes it a true plug-and-play part, completely eliminating the need for a dealer visit or expensive scan tools for programming.
Where is the FPCM located on my 2008-2009 Avalanche FPCM?
On the 2008-2009 Avalanche and most other GM trucks/SUVs on the list, the Fuel Pump Control Module is mounted on the outside of the driver-side frame rail, usually just ahead of the rear axle near the spare tire.
How do I provide my VIN?
After you complete your purchase, you will need to send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship the module until we have this information to program it correctly for your vehicle.
Is this the same as the fuel pump?
No. The fuel pump is located inside your fuel tank. This is the Fuel Pump Control Module (FPCM), which is a separate computer that tells the fuel pump how much pressure to generate. A failing FPCM is a very common cause of fuel delivery issues on these vehicles.
Will this fix a P069E code?
Yes, in the vast majority of cases. Diagnostic Trouble Code P069E (Fuel Pump Control Module Commanded OFF) is a classic indicator of a failing FPCM. Replacing the module with this pre-programmed unit is the standard, effective repair for this code.