If your 2010-2012 GMC Savana 1500 is suddenly stalling, struggling to start, or showing a ‘Reduced Engine Power’ message, the problem often points directly to a failing Fuel System Control Module (FSCM). As a technician with over two decades of experience, I’ve seen this exact issue countless times. The FSCM is the brain behind your fuel pump, and when it fails, it leaves you stranded. This isn’t just an inconvenience; for a work van, it’s lost time and money.
We offer a reliable and straightforward solution: a replacement Fuel System Control Module, part number 20877116, that arrives at your door fully programmed to your vehicle’s specific VIN. This crucial step means you can skip the expensive trip to the dealership, avoid towing fees, and get your van back on the road yourself. We load the latest GM software updates, ensuring optimal performance and communication with your vehicle’s other computers. It’s the smart, efficient fix for a critical problem.
A Technician’s Notebook
I remember a 2011 Savana work van that came into the shop on a tow truck. The owner, a plumber, said it would run fine for a while, then suddenly stall in traffic. He’d already replaced the fuel pump, but the problem persisted. His scanner showed a U0109 (Lost Communication with Fuel Pump Control Module) and a P069E code. A quick check under the van revealed the cause: the original FSCM, mounted on the frame rail, was heavily corroded from years of exposure to road salt and moisture. The connection was failing intermittently. We installed a new, programmed module, and the van ran perfectly. It’s a classic failure on these vehicles, and this part is the direct solution.
Is Your Savana Van Showing These Signs?
A faulty FSCM can cause a range of frustrating symptoms. If you’re experiencing any of the following, this module is the likely culprit:
- ✔ Engine cranks but refuses to start
- ✔ Sudden stalling while driving, especially under load
- ✔ ‘Reduced Engine Power’ warning light on the dash
- ✔ Check Engine Light with codes like P069E, P0230, or U0109
- ✔ Inconsistent fuel pressure readings
- ✔ Hesitation or sputtering during acceleration
A Straightforward Guide to Installation
Installing your new 2010-2012 Savana 1500 Fuel System Control Module is a job most DIYers can handle with basic tools. Because we pre-program it, no further electronic work is needed.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before starting any electrical work.
- Locate the Module: On the Savana 1500, the FSCM is typically mounted to the driver’s side (LH) frame rail, near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Then, unbolt the old module from the frame. These bolts may be rusty, so a little penetrating oil can help.
- Install the New Module: Bolt the new FSCM into the same location. Ensure it’s secure. Reconnect the electrical connectors, making sure they click firmly into place.
- Final Steps: Reconnect the negative battery terminal. Turn the key to the ‘On’ position for 10-15 seconds before starting the engine to allow the system to prime. Start your van and enjoy restored performance.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 20877116, 20791901, 20827745, and 20850927. It is guaranteed to fit the following GM models, but please verify your specific part number or contact us with your VIN if you are unsure.
- GMC Savana 1500 Van (2010-2012) – LH frame rail
- Chevrolet Express 1500 Van (2010-2012) – LH frame rail
- Chevrolet Silverado 1500 (2010-2012) – See fitment list for specific options
- GMC Sierra 1500 (2010-2012) – See fitment list for specific options
- Cadillac Escalade / ESV / EXT (2010-2012) – See fitment list for specific options
- Chevrolet Tahoe / Suburban 1500 (2010-2012) – See fitment list for specific options
- GMC Yukon / Yukon XL 1500 (2010-2012) – See fitment list for specific options
- Chevrolet Avalanche 1500 (2010-2012) – See fitment list for specific options
- …and many other GM vehicles listed in the compatibility chart.
Frequently Asked Questions
How does the VIN programming work?
After you place your order, simply send us your vehicle’s 17-digit VIN. Our technicians will use it to load the latest, most stable GM software specifically for your vehicle’s configuration. This makes the module truly plug-and-play.
Why is a programmed module better than a generic one?
A generic, unprogrammed module will not work. It cannot communicate with your vehicle’s Engine Control Module (ECM). Our pre-programmed service saves you the time, cost, and hassle of having a dealership or specialized shop perform this essential step.
Where is the FSCM located on my 2011 Savana Van?
On the 2010-2012 Savana and Express vans, the Fuel System Control Module is mounted on the outside of the driver’s side frame rail, typically ahead of the rear axle.
Is this part difficult to install myself?
No, this is a great DIY-friendly repair. With basic hand tools (like a socket set) and our guide, most people can complete the replacement in under an hour. The most important part—the programming—is already done for you.
Will this fix a P069E check engine light code?
Yes, the DTC P069E (Fuel Pump Control Module Requested MIL Illumination) is one of the most common codes indicating a failed FSCM. Replacing the module with this programmed unit is the correct and reliable fix for this code.