If your 2010-2012 Buick Enclave is suddenly stalling, hesitating, or refusing to start, the problem might not be the fuel pump itself. As a technician with over two decades of experience, I’ve seen countless vehicle owners and even other shops mistakenly replace the fuel pump when the real culprit was a faulty Fuel System Control Module (FSCM). This module is the brain behind your fuel delivery, and when it fails, it can cause some frustrating and hard-to-diagnose symptoms.
This isn’t just a replacement part; it’s a complete solution. We take a genuine GM module and pre-program it with the very latest factory software, specifically matched to your Enclave’s Vehicle Identification Number (VIN). This means you get a part that is truly plug-and-play, eliminating the need for an expensive trip to the dealership for programming. You’re getting a reliable fix that restores your vehicle’s performance and gets you back on the road with confidence.
A Technician’s Notebook: The Ghost in the Fuel System
I remember a 2011 Traverse—which shares its platform with the Enclave—that came into my bay with a classic no-start complaint. The owner had already replaced the fuel pump, but the problem persisted. His scanner showed a DTC P069E (Fuel Pump Control Module Commanded OFF). Instead of just throwing another pump at it, we checked the FSCM. These modules are often mounted on the frame rail or crossmember, exposed to water, salt, and vibrations. Sure enough, a quick tap on the module caused the fuel pressure to fluctuate wildly. We installed a new, pre-programmed 2010-2012 Enclave Fuel Module, and the vehicle fired right up and ran perfectly. It’s a textbook example of why proper diagnosis is key.
Is Your Enclave Showing These Signs?
A failing FSCM can mimic other fuel system issues. Here are the common red flags to watch for:
- ✔ Engine cranks but will not start
- ✔ Stalling, especially under load or when coming to a stop
- ✔ Hesitation or stumbling during acceleration
- ✔ Reduced engine power and poor fuel economy
- ✔ Check Engine Light with diagnostic trouble codes (DTCs) like P069E, U0109, or P0230
- ✔ Inconsistent fuel pressure readings
A Straightforward Guide to Installation
For the DIY enthusiast or professional mechanic, replacing the 2010-2012 Enclave Fuel Module is a manageable job. On the Enclave, it’s typically located on the rear crossmember, making it more accessible than on some trucks.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: Safely raise the rear of the vehicle and locate the FSCM mounted to the rear crossmember. It’s a small, black box with electrical connectors.
- Disconnect and Remove: Carefully unplug the electrical harnesses. Then, remove the bolts or nuts securing the module to the chassis and take the old module off.
- Install the New Module: Mount your new, pre-programmed module in the same location, securing it with the original hardware.
- Reconnect and Test: Plug the electrical connectors back in firmly. Reconnect the battery terminal, turn the key to the ‘On’ position for a few seconds to prime the system, and then start the engine.
Verified Vehicle Compatibility
This module, part number 20827745, is a direct replacement for a wide range of GM vehicles. It is also compatible with part numbers 20791901, 20877116, and 20850927. Please verify your vehicle from the list below. Important: After purchase, please provide your VIN so we can ensure perfect programming.
- ACADIA: 2010-2012 (rear crossmember)
- AVALANCHE 1500: 2010-2012 (LH frame rail)
- CANYON / COLORADO: 2010-2012 (rear center frame)
- CAPTIVA SPORT: 2012 (LH rear compartment)
- CTS: 2010-2012 (LH rear compartment)
- ENCLAVE: 2010-2012 (rear crossmember)
- ESCALADE / ESV / EXT: 2010-2012 (LH frame rail)
- EXPRESS / SAVANA 1500 VAN: 2010-2012 (LH frame rail)
- HUMMER H3: 2010 (rear frame)
- IMPALA: 2012 (RH rear quarter panel)
- LACROSSE: 2010-2012 (RH rear trunk)
- OUTLOOK: 2010
- REGAL: 2011-2012 (LH rear quarter interior)
- SIERRA / SILVERADO 1500: 2010-2012 (LH frame rail)
- SUBURBAN 1500: 2010-2012 (LH frame rail)
- TAHOE: 2010-2012 (LH frame rail)
- TRAVERSE: 2010-2012 (rear crossmember)
- VUE: 2010 (RH rear engine compartment)
- YUKON / YUKON XL 1500: 2010-2012 (LH frame rail)
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibrations specific to your vehicle’s original build. This ensures seamless communication with other modules, like the ECM, and guarantees proper function without any additional programming.
Is this part difficult to install?
For most DIYers with basic tools, this is a straightforward replacement. On the 2010-2012 Enclave, the module is located on the rear crossmember. Since our module comes pre-programmed, no special electronic tools are needed, making the physical swap the only step.
Will this fix a P069E code?
Yes, the DTC P069E (Fuel Pump Control Module Commanded OFF) is one of the most common codes indicating a failed FSCM. While you should always perform a full diagnosis, a faulty module is the leading cause for this specific code.
Is this a new or used part?
This is a high-quality, genuine GM-spec module that has been inspected and programmed with the latest software. It is guaranteed to perform to OEM standards and resolve your vehicle’s issues.
What happens if I don’t replace a failing FSCM?
Ignoring a failing FSCM can lead to unpredictable stalling, which is a significant safety hazard. It can also cause a no-start condition, leaving you stranded. Replacing it promptly restores your vehicle’s reliability and safety.