Is Your 2010 Hummer H3 Stalling, Hesitating, or Refusing to Start?
As a technician with over two decades of experience, I’ve seen this scenario countless times. A rugged 2010 Hummer H3 gets towed into the shop. It cranks over perfectly but won’t fire up. The owner is frustrated, sometimes having already replaced the fuel pump with no success. The culprit is almost always a failed Fuel System Control Module (FSCM), and the diagnostic scanner usually confirms it with a P069E trouble code. This module, often located on the rear frame, is the brain behind your fuel pump, and its failure can bring your vehicle to a dead stop.
Don’t let a faulty module sideline your Hummer. This is a direct-fit replacement Fuel System Control Module, part number 20827745, that arrives at your door completely programmed and ready for installation. We take care of the complex part so you can get the job done right in your own garage.
The Simple Solution: Pre-Programmed for Your HUMMER
Traditionally, replacing an FSCM meant buying the part, installing it, and then having your vehicle towed to a dealership for expensive programming. We eliminate that last, costly step. Simply provide us with your vehicle’s VIN (Vehicle Identification Number) during checkout, and our technicians will flash this module with the latest, most stable GM software specific to your 2010 Hummer. Itโs a true plug-and-play solution.
Expert Pro Tip: Before you install your new FSCM, take a close look at the wiring harness connector on your vehicle. These modules are often mounted on the frame rail, exposed to moisture and road salt. I’ve seen dozens of repeat failures caused by corrosion in the connector pins. Use a small pick or brush and some quality electrical contact cleaner to ensure the terminals are bright and clean. A solid connection is critical for the longevity of your new module.
Common Symptoms of a Failing 2010 HUMMER FSCM:
- โ Check Engine Light with codes like P069E, P0230, or U0109.
- โ Engine cranks but will not start.
- โ Stalling or hesitation, especially under acceleration.
- โ Rough idle or poor engine performance.
- โ Reduced power and fuel economy.
Plug-and-Play Installation: No Dealer Visit Required
Installing your new module is a straightforward process you can handle with basic tools. Hereโs a general guide for a 2010 Hummer H3:
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On the Hummer H3, the FSCM is typically mounted on the rear frame crossmember, near the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connector. Then, remove the bolts or nuts securing the old module to the frame.
- Install the New Module: Mount your new, pre-programmed FSCM in the same location and secure it with the original hardware.
- Reconnect: Plug the wiring harness connector firmly into the new module until it clicks. Reconnect your battery terminal.
- Start the Engine: Your Hummer should now start and run properly with fuel pressure restored.
Guaranteed Compatibility
This module is a direct replacement for several original GM part numbers, ensuring a perfect fit and function. It is compatible with part numbers: 20791901, 20827745, 20877116, and 20850927. While this listing is focused on the 2010 Hummer H3, this versatile module also fits a wide range of GM vehicles, including the Cadillac Escalade, Chevy Silverado, GMC Sierra, and many more, as detailed in our fitment list.