Is your GM truck or SUV stalling, hesitating, or refusing to start? A failing Fuel System Control Module (FSCM) is a common and frustrating problem, but you’ve found the definitive, hassle-free solution. This genuine GM module is the reliable fix you need, and we take care of the most difficult part for you. Before shipping, we program the module with the very latest GM software, perfectly matched to your vehicle’s specific VIN. This means no expensive trips to the dealership, no special tools, and no programming headaches. You get a part that is truly ready for a plug-and-play installation, getting you back on the road with confidence and saving you significant time and money.
Common Symptoms & Your Solution
A faulty FSCM can mimic other fuel system problems, but it often triggers specific warning signs. If you’re experiencing any of the following, this pre-programmed module is your answer:
- Check Engine Light: Often with Diagnostic Trouble Codes (DTCs) like P069E, P025A, or P0606 stored in the ECU.
- No-Start Condition: The engine cranks over but won’t start due to a lack of fuel pressure.
- Stalling or Hesitation: The vehicle may stall unexpectedly, especially under load, or hesitate during acceleration.
- Reduced Engine Power: Your vehicle may enter a ‘limp mode’ with a noticeable loss of power.
- Erratic Fuel Gauge: In some cases, the fuel gauge may provide inaccurate readings.
By replacing your old unit with this professionally programmed GM Fuel System Control Module 20827745, you directly address the electronic source of these fuel delivery issues, restoring your vehicle’s original performance and reliability.
Features & Benefits
- âś” VIN-Programmed & Ready to Install: We flash this module with the latest GM software using your vehicle’s VIN. This eliminates the need for an expensive trip to the dealership for programming.
- âś” Restores Proper Fuel Delivery: Corrects issues like stalling, hesitation, and no-start conditions by ensuring your fuel pump receives precise voltage and commands.
- âś” Direct-Fit Replacement: Engineered to match the original factory part for a seamless installation. Fully compatible with part numbers 20791901, 20827745, 20877116, and 20850927.
- âś” Solves Common DTCs: The definitive fix for diagnostic trouble codes like P069E, P025A, and other fuel control circuit faults.
- âś” Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Insight: Why FSCMs Fail
As a technician, I’ve replaced hundreds of these modules. On most GM trucks and SUVs, the FSCM is mounted directly to the frame rail. This location exposes it to everything the road throws at it: water, road salt, mud, and vibrations. Over time, moisture seeps past the seals and corrodes the delicate internal circuit board, leading to intermittent or complete failure. When you install your new GM Fuel System Control Module 20827745, I recommend applying a thin layer of dielectric grease to the connector pins to add an extra layer of protection against future moisture intrusion. It’s a small step that can make a big difference in the long-term reliability of the part.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the module to function in your vehicle.
Is this part truly plug-and-play?
Yes. Because we program the module to your specific VIN before it leaves our facility, it is ready to be installed right out of the box. Once installed, it will communicate correctly with your vehicle’s other computers without requiring any further procedures from a dealer or specialized technician.
What happens if I install the module without programming?
An unprogrammed FSCM will not work. It will fail to communicate with the Engine Control Module (ECM) and Body Control Module (BCM), and your vehicle will likely not start. Our pre-programming service ensures this critical step is done correctly for you.
Where is the FSCM located on my vehicle?
On most trucks and large SUVs like the Silverado, Sierra, Tahoe, and Yukon, the module is typically mounted on the driver’s side frame rail, often near the spare tire. On other vehicles, it may be located in the rear compartment or trunk area. A quick search for your specific model will provide the exact location.
Is this the correct part for my vehicle?
This GM Fuel System Control Module 20827745 fits a wide range of GM vehicles. Please review the detailed fitment list on this page to confirm compatibility with your specific year, make, and model. Matching your original part number to 20827745, 20791901, 20877116, or 20850927 will also confirm a match.