Restore Your Truck’s Reliability and Power
Is your 2008-2009 Sierra Denali suffering from frustrating issues like stalling, hesitation, or a no-start condition? A failing Fuel Pump Control Module (FPCM), often called a driver module, is one of the most common culprits on these GM trucks. Located on the frame rail, it’s exposed to harsh elements, leading to corrosion and electronic failure over time. This module is the brain behind your fuel pump, regulating its voltage to ensure precise fuel pressure. When it fails, it leaves you stranded. In my 20+ years as a technician, I’ve seen countless trucks come into the bay with these exact symptoms, often after the owner has already replaced the fuel pump itself, only to find the problem persists.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and expense out of the repair by pre-programming this 2008-2009 Sierra Denali Fuel Pump Control Module to your truck’s specific Vehicle Identification Number (VIN). This means you can skip the costly trip to the dealership for programming. Simply provide us with your VIN at checkout, and we’ll flash the module with the latest GM software updates, ensuring optimal performance and compatibility right out of the box.
From the Diagnostic Bay: The Ghost in the Fuel System
A customer brought in an ’08 Silverado with an intermittent stalling problem that was driving him crazy. It would die at stoplights, then restart fine. He’d already spent a small fortune on a new fuel pump, but the issue remained. We hooked up the scan tool and found a stored DTC P069E – Fuel Pump Control Module Requested MIL Illumination. Instead of just throwing another part at it, we inspected the FPCM on the driver-side frame rail. It was caked in mud and the connectors showed early signs of corrosion. A quick voltage test confirmed our suspicion: the module was failing under load. We installed a new, VIN-programmed FPCM, and the truck ran perfectly. It’s a classic case where understanding the system, not just the code, saves the customer time and money.
Is Your Truck Exhibiting These Telltale Signs?
- ✔ Stalling or engine cutting out while driving
- ✔ Extended crank time or complete no-start condition
- ✔ “Reduced Engine Power” message on the dash
- ✔ Check Engine Light with codes such as P069E, P0230, or U0109
- ✔ Noticeable hesitation or sputtering during acceleration
- ✔ A fuel pump that seems to run constantly or not at all
A Straightforward Guide to Installation
Replacing the FPCM is a job most DIYers can handle in their driveway with basic hand tools. This 2008-2009 Sierra Denali Fuel Pump Control Module is designed for a direct fit.
- Safety First: Disconnect the negative terminal from your vehicle’s battery to prevent any electrical shorts.
- Locate the Module: On most trucks like the Sierra Denali, you’ll find the FPCM mounted to the driver-side frame rail, typically above the spare tire.
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle, as the plastic clips can become brittle. Then, unbolt the module from the frame.
- Install the New Module: Bolt the new, pre-programmed module into the same location. Apply a small amount of dielectric grease to the connector pins to protect against future corrosion.
- Reconnect: Plug the electrical connectors firmly into the new module until they click. Reconnect your battery terminal.
- Final Check: Start the vehicle. It should fire up smoothly with stable fuel pressure. No further programming is required.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, and 25967325. It fits the following vehicles:
AVALANCHE 1500 08-09 (LH frame rail)
CANYON / COLORADO 09 (rear center frame)
ENCLAVE 09 (Fuel Pump)
ESCALADE / ESV / EXT 08-09 (LH frame rail)
EXPRESS / SAVANA 1500 VAN 08-09 (LH frame rail)
HUMMER H2 08-09 (LH frame rail)
HUMMER H3 09 (rear frame)
OUTLOOK 09 (Fuel Pump)
SIERRA 1500 PICKUP 07 (New Body Style, smooth door skin, LH frame rail)
SIERRA 1500 PICKUP 08-09 (LH frame rail)
SIERRA DENALI 08-09 (LH frame rail)
SILVERADO 1500 PICKUP 07 (New Body Style, smooth door skin, LH frame rail)
SILVERADO 1500 PICKUP 08-09 (LH frame rail)
SUBURBAN 1500 08-09 (LH frame rail)
TAHOE 08-09 (LH frame rail)
TRAVERSE 09 (rear crossmember)
VUE 08-09 (RH rear engine compartment)
YUKON / YUKON XL 1500 08-09 (LH frame rail)
Frequently Asked Questions
Why do I need to provide my VIN?
Your VIN is required so we can program the module with the exact software and calibrations for your specific vehicle. This ensures 100% compatibility and function without a trip to the dealer.
What does a Fuel Pump Control Module do?
The FPCM acts like a dimmer switch for your fuel pump. It receives commands from the Engine Control Module (ECM) and adjusts the voltage sent to the fuel pump to maintain optimal fuel pressure for all driving conditions.
Can I install this myself?
Yes, this is a very common DIY repair. Since our module comes pre-programmed, the installation is a simple bolt-off, bolt-on process requiring only basic hand tools.
Is this part compatible with other part numbers?
Yes, this module is a direct replacement for several part numbers, including 20759945, 25866052, and 25967325, among others listed in the description. It incorporates the latest GM engineering updates.
Will this fix a P069E code?
A faulty FPCM is the most common cause of a P069E trouble code. While you should always perform a complete diagnosis, replacing a failed module is the definitive fix for this issue.