Is Your GM Truck or SUV Stalling, Hesitating, or Not Starting?
If your 2008-2009 GMC Savana 1500, or another compatible GM vehicle, is experiencing frustrating fuel delivery problems, a faulty Fuel Pump Control Module (FPCM) is the most common cause. Symptoms like an engine that cranks but won’t start, sudden stalling while driving, hesitation under acceleration, or a persistent Check Engine Light with codes like P069E or P0230 often point directly to this critical component. Don’t waste time and money replacing a perfectly good in-tank fuel pump when the real issue lies with the module that controls it.
This is a genuine GM Fuel Pump Control Module, part number 25854536, that arrives at your door fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This eliminates the need for an expensive trip to the dealership for programming. It’s a true plug-and-play solution, loaded with the latest GM software updates to ensure optimal performance and longevity. Restore your vehicle’s reliability and drivability with a component designed to fix the problem correctly the first time.
From the Diagnostic Bay
I once had a 2008 Silverado 1500 come into the shop on a tow truck. The owner was frustrated, having already replaced the in-tank fuel pump twice at another garage. The truck would run for a few minutes and then stall, or sometimes just refuse to start at all. The fuel pressure was erratic. A quick scan showed code P069E – Fuel Pump Control Module Commanded OFF. Instead of throwing another pump at it, we went straight to the FPCM, located on the driver-side frame rail. It was caked in dirt and the aluminum casing showed signs of corrosion. We installed one of our pre-programmed modules, and the truck fired right up and ran perfectly. The customer could have saved hundreds of dollars and a lot of headaches by diagnosing the FPCM first. It’s a classic case of treating the symptom instead of the cause.
Common Symptoms of a Failing FPCM
- ✔ No-Start Condition: The engine will turn over (crank) but will not fire up due to a lack of fuel pressure.
- ✔ Engine Stalling: The vehicle may start and run for a short period before stalling unexpectedly, often when it’s warm.
- ✔ Hesitation or Stumbling: Under acceleration, the vehicle may hesitate, stumble, or feel like it’s losing power.
- ✔ Reduced Power Mode: The vehicle’s computer may trigger a ‘Reduced Power’ mode to protect the engine.
- ✔ Check Engine Light: Diagnostic Trouble Codes (DTCs) such as P069E, P0230, P0606, or U0109 are common indicators of an FPCM failure.
- ✔ Inconsistent Fuel Pressure: A fuel pressure gauge may show fluctuating or low pressure readings, even with a new in-tank pump.
Understanding Your Savana 1500 Fuel Pump Module
The Fuel Pump Control Module, also known as a Fuel System Control Module (FSCM), plays a vital role in modern fuel injection systems. Unlike older systems that ran the fuel pump at full power all the time, the FPCM uses pulse-width modulation (PWM) to precisely vary the voltage sent to the in-tank fuel pump. This allows the Engine Control Module (ECM) to request specific fuel pressures based on engine load, speed, and other factors. This process improves efficiency, reduces heat in the fuel tank, and extends the life of the fuel pump.
Unfortunately, on many GM trucks and SUVs from this era, including the Savana 1500 Fuel Pump Module, the unit is mounted on the frame rail. This location exposes it to water, road salt, and debris, leading to corrosion that compromises the internal electronics and causes failure. When the module fails, it can no longer properly command the fuel pump, leading to the host of symptoms listed above.
The Importance of VIN Programming
A new FPCM cannot simply be installed out of the box. Each module must be programmed with software specific to your vehicle’s VIN. This programming calibrates the module to your vehicle’s specific engine, fuel system, and operating parameters. Our service handles this for you. By providing your VIN at checkout, you receive a module that is ready for immediate installation, with all the latest GM software updates already applied. This ensures compatibility and proper function without any additional steps.
Wide Compatibility
This module is a direct replacement for a wide range of GM vehicles and part numbers. It is compatible with the following part numbers: 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, and 25967325. It fits models such as the Chevrolet Silverado, Tahoe, Suburban, Avalanche, Express, and Traverse; the GMC Sierra, Yukon, Acadia, and Savana; the Cadillac Escalade; and the Hummer H2 and H3, among others. Please verify the fitment list to ensure it matches your specific vehicle.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) is required so we can load the correct, vehicle-specific software and calibrations from GM onto the module. This makes the part a true plug-and-play component, saving you a trip to the dealer for expensive programming.
Where is the FPCM located on my vehicle?
On most trucks and large SUVs like the Savana, Silverado, and Tahoe, the Fuel Pump Control Module is typically mounted to the driver-side frame rail, often near the spare tire. On other models like the Traverse or Acadia, it may be on a rear crossmember. Always consult a repair manual for your specific vehicle to confirm the location.
Is this different from the fuel pump in the gas tank?
Yes, this is a separate electronic control module. The in-tank fuel pump is the mechanical pump that moves the fuel. This FPCM is the ‘brain’ that tells the in-tank pump how fast to run. It’s very common for this module to fail while the in-tank pump is still perfectly functional.
What happens if I don’t replace a failing FPCM?
A failing FPCM will lead to increasingly frequent and severe drivability issues. You will experience more stalling, hesitation, and eventually, a permanent no-start condition that will leave you stranded. It can also cause premature wear on the in-tank fuel pump.
Is installation difficult?
For someone with basic mechanical skills, installation is straightforward. It typically involves safely raising the vehicle, locating the module, disconnecting the electrical connector, and removing a few bolts. Since our module is pre-programmed, no special tools are needed for software setup. The most difficult part is often dealing with rusted bolts due to the module’s location.