Is your 2009 GMC Acadia or another GM vehicle suddenly stalling, refusing to start, or showing a ‘Reduced Engine Power’ message? Before you condemn the fuel pump, the culprit is often the Fuel Pump Control Module (FPCM), also known as the Fuel System Control Module (FSCM). I’ve seen this exact scenario play out hundreds of times in my 20+ years as a technician. This module is the brain behind your fuel pump, and when it fails, it leaves you stranded. This listing is your direct-fit, permanent solution: a reliable FPCM, part number 20850907, that arrives at your door pre-programmed to your vehicle’s specific VIN.
The key benefit here is eliminating the expensive and time-consuming trip to the dealership for programming. We handle it for you. Simply provide your VIN after purchase, and our experts will flash the module with the latest GM software updates. This ensures perfect communication between the FPCM, the ECM, and your fuel pump, restoring factory performance and reliability right out of the box.
From the Diagnostic Bay: The Intermittent Stall Case
A customer brought in their ’09 Acadia with a frustrating problem: it would run fine for days, then suddenly stall at a stoplight and refuse to restart for 10-15 minutes. There were no consistent trouble codes, just a history of a P069E. Instead of just throwing a fuel pump at it, I hooked up my scan tool and monitored the desired vs. actual fuel pressure while driving. During one of the stalling events, I saw the desired pressure was at 58 PSI, but the actual pressure plummeted to zero. The fuel pump wasn’t getting the command. We traced it to the FPCM, which is mounted on the frame rail where it’s exposed to water, salt, and vibration. Corrosion had compromised the internal circuit board. Replacing it with a pre-programmed unit solved the problem permanently.
Is Your Vehicle Showing These Warning Signs?
A failing FPCM can mimic a bad fuel pump. If you’re experiencing any of the following, this module is the likely cause:
- ✔ Engine cranks but will not start
- ✔ Vehicle stalls unexpectedly while driving, especially when warm
- ✔ Hesitation or stumbling during acceleration
- ✔ ‘Reduced Engine Power’ warning light on the dash
- ✔ Check Engine Light with diagnostic trouble codes (DTCs) such as P069E, P0230, or U0109 (Lost Communication With Fuel Pump Control Module)
- ✔ A noticeable whine from the fuel pump that changes pitch erratically
A Straightforward Guide to Installation
Because this 2009 Acadia Fuel Pump Control Module comes pre-programmed, installation is a simple bolt-in process that most DIYers can complete in under an hour with basic hand tools.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most of these vehicles, the FPCM is mounted to the frame rail, typically on the driver’s side near the spare tire or rear axle. On vehicles like the Traverse or Acadia, it might be on a rear crossmember.
- Disconnect and Remove: Carefully unplug the electrical connector(s). Then, remove the bolts or nuts securing the old module to the frame. It may be corroded, so a little penetrating oil can help.
- Install the New Module: Bolt the new, pre-programmed FPCM into the same location. Ensure it is securely fastened.
- Reconnect and Finalize: Plug the electrical connector firmly into the new module. Reconnect the negative battery terminal. The vehicle is now ready to start with no further programming needed.
Verified Fitment For These GM Vehicles
This module is a direct replacement for a wide range of GM trucks and SUVs. It is compatible with part numbers 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, 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 / H3: 2008-2009
- Outlook: 2009
- Sierra / Silverado 1500 Pickup: 2007 (New Body Style), 2008-2009
- Suburban 1500: 2008-2009
- Tahoe: 2008-2009
- Traverse: 2009
- Vue: 2008-2009
- Yukon / Yukon XL 1500: 2008-2009
By ordering this pre-programmed 2009 Acadia Fuel Pump Control Module, you’re not just buying a part; you’re buying a complete, hassle-free solution that restores your vehicle’s dependability and gets you back on the road with confidence.
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 specific software and calibrations for your exact model, year, and options. This ensures it works perfectly right out of the box, with no dealer visit needed.
What does the Fuel Pump Control Module do?
The FPCM regulates the voltage sent to the fuel pump. Instead of the pump running at full speed all the time, the FPCM precisely controls pump speed based on engine demand. This improves efficiency and prolongs the life of the fuel pump.
Is this a common problem on these GM vehicles?
Yes, FPCM failure is a very common issue. Due to its mounting location on the vehicle’s frame, it is exposed to harsh conditions like water, road salt, and heat, which can lead to internal corrosion and failure over time.
Can I install this myself?
Absolutely. Since we pre-program the module for you, the installation is a simple plug-and-play process. You just need to unbolt the old module and bolt the new one in its place. Basic hand tools are all that’s required.
Will this fix a P069E code?
In the vast majority of cases, yes. The DTC P069E (Fuel Pump Control Module Requested MIL Illumination) is a direct indicator that the FPCM has detected an internal fault and has commanded the check engine light to turn on. Replacing the module is the standard, effective repair.