Is Your Truck Stalling, Sputtering, or Refusing to Start?
If your 2008-2009 Cadillac Escalade EXT, or another compatible GM truck or SUV, is experiencing frustrating fuel delivery problems, a faulty Fuel Pump Control Module (FPCM) is the most common culprit. Symptoms like an engine that cranks but won’t catch, sudden stalling while driving, hesitation under acceleration, or a persistent Check Engine Light can often be traced directly to this critical component. This isn’t just an inconvenience; it’s a reliability issue that can leave you stranded. We offer the definitive solution: a genuine GM Fuel Pump Control Module, part number 25854536, pre-programmed specifically for your vehicle’s VIN.
From the Diagnostic Bay
We had a 2008 Sierra 1500 towed in that was driving its owner crazy. It would start fine cold, but after 20 minutes of driving, it would sputter and die. He had already replaced the in-tank fuel pump twice, assuming it was overheating. After hooking up our diagnostic scanner, we monitored the fuel pressure command from the FPCM versus the actual pressure. The commanded pressure was steady, but the actual pressure was dropping off a cliff right before the stall. The problem wasn’t the pump; it was the module mounted on the frame rail, which was failing once it got hot. A new, properly programmed FPCM had the truck running perfectly in under 30 minutes. Don’t just replace parts; diagnose the problem. In this case, the FPCM was the true source of the failure.
Common Symptoms of a Failing FPCM
- ✔ Engine cranks but will not start
- ✔ Vehicle stalls unexpectedly, often when warm or under load
- ✔ Hesitation or sputtering during acceleration
- ✔ Noticeable loss of engine power
- ✔ Poor fuel economy
- ✔ Check Engine Light illuminated with codes such as P069E, P0230, or P025A
The Critical Role of Your 2008-2009 Escalade EXT FPCM
The Fuel Pump Control Module, also known as a Fuel System Control Module (FSCM), is the brain behind your vehicle’s fuel delivery system. Unlike older systems that ran the fuel pump at full speed constantly, the FPCM precisely regulates the voltage sent to the fuel pump. This allows it to vary the pump’s speed and pressure based on real-time engine demand, improving efficiency and extending the life of the fuel pump. However, its typical mounting location on the vehicle’s frame rail exposes it to harsh conditions—road salt, water, mud, and vibrations—which often lead to internal corrosion and electronic failure.
The “Plug & Play” Solution: No Dealer Visit Required
Replacing an FPCM isn’t just a matter of swapping the part. A new module from a dealership is a blank slate; it must be programmed with specialized tools to communicate with your vehicle’s specific operating system and VIN. This typically means an expensive trip to the dealer for installation and programming. Our process eliminates that step entirely. When you purchase this module, you provide us with your vehicle’s VIN. Our technicians then flash the module with the latest, most stable GM software specific to your truck. The part that arrives at your door is a true plug-and-play solution, ready for immediate installation. This saves you significant time, hassle, and money.
Wide Compatibility Across the GM Lineup
This FPCM is a direct replacement for a wide range of popular GM trucks and SUVs. While this listing focuses on the 2008-2009 Escalade EXT FPCM, it is also the correct part for models like the Silverado 1500, Sierra 1500, Tahoe, Suburban, Yukon, Avalanche, and more from the same era. It is compatible with the following part numbers:
- 13501024
- 15213110
- 20759945
- 20850907
- 25785013
- 25854536
- 25866052
- 25967325
Frequently Asked Questions
Why do I need to provide my VIN?
Your vehicle’s VIN (Vehicle Identification Number) is essential for programming. It allows us to load the exact GM software calibration that matches your truck’s engine, transmission, and emissions equipment. This ensures perfect communication and flawless operation, just like the original part from the factory.
Is this module difficult to install?
For most of the listed vehicles, the FPCM is located on the driver’s side frame rail, often near the spare tire. Installation is typically straightforward for someone with basic mechanical skills. It involves disconnecting the battery, unplugging the electrical connectors, and removing a few bolts. Since our module is pre-programmed, no further steps are needed after installation.
Will this fix my Check Engine Light for code P069E?
The diagnostic trouble code P069E (Fuel Pump Control Module Commanded OFF) is a very strong indicator that the FPCM has failed. While you should always confirm the diagnosis, replacing a faulty module is the specific factory-recommended repair for this code.
What happens if I install this without programming?
An unprogrammed or incorrectly programmed FPCM will not work. Your vehicle will likely not start, or it will run very poorly and set multiple communication error codes. Our pre-programming service ensures the module is ready to function correctly the moment you install it.
Is this a genuine GM part?
Yes, this is a genuine, validated GM component loaded with official GM software. We ensure every module meets or exceeds original equipment specifications for performance and reliability, giving you a lasting repair.