Is Your GM Truck or SUV Stalling, Hesitating, or Refusing to Start?
If your 2010-2012 Silverado, Tahoe, Escalade, or other GM vehicle is suddenly leaving you stranded, the problem might not be the fuel pump itself, but the small computer that controls it. I’ve seen this countless times in my 20+ years in the shop. A customer comes in with a tow truck, convinced they need a new, expensive fuel pump. After a quick diagnostic check, we often find the true culprit: a failed Fuel System Control Module (FSCM), also known as a fuel pump driver module.
This module, part number 20827745, is the brain behind your fuel delivery system. It takes commands from the main Engine Control Module (ECM) and precisely regulates the voltage sent to the fuel pump. When it fails, the fuel pump doesn’t get the correct power, leading to a host of frustrating and dangerous engine performance issues.
Expert Pro Tip from a 20-Year Technician
Before you install your new module, take a close look at the vehicle’s wiring harness connector. On trucks and SUVs, these modules are often mounted on the frame rail, exposed to road salt, water, and grime. I’ve seen perfectly good replacement modules fail prematurely because they were plugged into a corroded connector. Use a small brush and a quality electrical contact cleaner to thoroughly clean the pins and ensure a perfect, weather-tight seal. This five-minute step can save you hours of headaches down the road.
The Simple, No-Hassle Solution: A VIN-Programmed Module
In the past, replacing this module meant a trip to the dealership for expensive programming. Not anymore. We’ve eliminated that step for you. When you purchase this FSCM, you simply provide us with your vehicle’s 17-digit VIN. Our certified technicians will then flash the module with the latest, most stable GM software specific to your exact vehicle. It arrives at your door ready to installโno special tools, no subscription fees, and no dealer appointment needed.
Common Symptoms of a Failing GM Fuel Control Module:
- โ Engine cranks but will not start
- โ Stalling while driving, especially under load
- โ Rough idle or engine hesitation
- โ Loss of power and poor acceleration
- โ Check Engine Light with codes like P069E, P0230, or P025A
- โ “Service Fuel System” or “Engine Power is Reduced” message on the dash
Plug-and-Play Installation: Get Back on the Road Fast
Replacing the FSCM is a straightforward job for any DIYer. While the exact location varies by model (check your service manual), it’s typically found on the driver’s side frame rail or near the spare tire.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: Find the old FSCM. It’s a small black box with a single large electrical connector.
- Disconnect and Remove: Carefully unplug the wiring harness and unbolt the module from its mounting point.
- Install the New Module: Bolt your new, pre-programmed module in place and securely plug in the cleaned electrical connector until it clicks.
- Reconnect Power: Reconnect the negative battery terminal.
- Final Check: Start the vehicle. It should fire up and run smoothly, with the check engine light off.
This single module is a direct replacement for multiple GM part numbers, including 20791901, 20877116, and 20850927. By providing a part that’s pre-flashed with the correct software, we ensure compatibility and restore the precise fuel control your engine needs for optimal performance and reliability. Don’t let a small electronic part keep your powerful GM vehicle down. Order today and get the right fix, the first time.