Is Your 2008-2009 GM Truck or SUV Stalling or Failing to Start?
There’s nothing more frustrating than an engine that cranks but refuses to start, or one that quits on you unexpectedly in traffic. If you’re driving a 2008-2009 GMC Yukon, Chevy Tahoe, Cadillac Escalade, or another compatible GM vehicle, these symptoms often point to a failing Fuel Pump Control Module (FPCM), also known as a Fuel System Control Module (FSCM). This small but critical component regulates the voltage sent to your fuel pump, ensuring your engine receives the precise amount of fuel it needs under all driving conditions. When it fails, it can leave you stranded.
This replacement Fuel Pump Control Module, part number 20850907, is the definitive solution to restore your vehicle’s reliability and performance. Unlike a generic part from a local store, this module comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This means no expensive trips to the dealership for programming, no special tools required—just a true plug-and-play installation.
From the Diagnostic Bay
I once had a 2008 Silverado 1500 in the shop that was on its third fuel pump in a year. The owner was convinced he kept getting faulty pumps. The truck would run fine for a few weeks, then start sputtering and eventually die. After checking fuel pressure, which was erratic, we bypassed the module and powered the pump directly. The pressure was solid and steady. The real culprit was the original FPCM, which was overheating and failing intermittently, sending erratic voltage and burning out the pumps. Replacing the FPCM with a correctly programmed unit solved the problem for good. It’s a classic case of treating the cause, not just the symptom.
Common Symptoms of a Failing FPCM
- ✔ Engine cranks but will not start
- ✔ Stalling, especially when the vehicle is warm or under load
- ✔ Hesitation or sputtering during acceleration
- ✔ Reduced engine power or the vehicle entering “limp mode”
- ✔ Check Engine Light with diagnostic trouble codes (DTCs) such as P069E, P0230, or P025A
- ✔ A loud whining noise from the fuel pump as it runs at 100% duty cycle
- ✔ No fuel pressure at the rail
The Importance of a Programmed 2008-2009 Yukon Fuel Pump Module
In modern GM vehicles, the FPCM is a networked computer that communicates with the Engine Control Module (ECM) and other vehicle systems. It uses this data to precisely manage fuel delivery. A non-programmed module simply won’t work, as it cannot communicate properly with your vehicle’s network. Our process eliminates this hurdle. By providing your VIN during checkout, you receive a module that is loaded with the latest GM software updates specific to your vehicle. This ensures optimal performance, fuel efficiency, and longevity for your fuel pump.
Installation and Compatibility
This FPCM is a direct-fit replacement for a wide range of GM trucks and SUVs. It is a compatible replacement for part numbers 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, and 25967325. The module is typically located on the driver’s side frame rail, often near the spare tire. Installation is straightforward: disconnect the negative battery terminal, unplug the electrical connectors, unbolt the old module, and install the new one. Since the programming is already done, your vehicle will be ready to start once reconnected.
Frequently Asked Questions
Do I need to have this module programmed?
No. This module is sold as a pre-programmed service. You must provide us with your vehicle’s VIN at the time of purchase, and we will flash the unit with the correct software before shipping it. It will arrive ready for installation.
Where is the FPCM located on my 2008 GMC Yukon?
On most GMT900 platform vehicles like the Yukon, Tahoe, and Silverado, the Fuel Pump Control Module is mounted to the driver’s side frame rail, typically above the spare tire. Always consult a service manual for the exact location on your specific model.
What happens if I install this without providing my VIN?
The module will not function correctly. It requires VIN-specific programming to communicate with your vehicle’s other computers, such as the ECM. Without it, your vehicle will likely not start or will run very poorly. Providing your VIN is a required step for this part.
Is this part compatible with a 2007 Silverado?
Yes, this module fits the 2007 “new style” (NBS) Silverado 1500 with the smooth door skin, as well as a wide variety of other GM models from 2007-2009 including the Escalade, Suburban, Sierra, and more. Please verify compatibility using the fitment list on this page.
Can a bad FPCM damage my fuel pump?
Absolutely. A failing FPCM can send incorrect voltage to the fuel pump, causing it to run at maximum speed constantly or receive erratic power. Both of these scenarios can cause the fuel pump to overheat and fail prematurely.