Restore Your Truck’s Reliability and Performance
Is your 2007-2009 Sierra 1500, Silverado, or other GM truck suddenly stalling, hesitating, or refusing to start? Before you condemn the fuel pump, the real culprit is often the Fuel Pump Control Module (FPCM), also known as the Fuel System Control Module (FSCM). As a technician with over two decades of experience, I’ve seen this exact scenario play out hundreds of times. These modules, often mounted on the frame rail, are exposed to brutal conditions—road salt, water, and vibrations—leading to internal corrosion and failure. This leaves you with an unreliable vehicle and a major headache.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the hassle and high cost of dealership visits out of the equation. Each 2007-2009 Sierra Fuel Module is professionally programmed with the latest GM software updates specifically for your truck’s Vehicle Identification Number (VIN). This critical step ensures proper communication with your vehicle’s powertrain control module (PCM), restoring correct fuel pressure and engine performance. You get a reliable fix that often corrects the very software logic issues that contributed to the original part’s failure.
Case Study: A Tricky Diagnosis
I remember a 2008 Silverado 1500 that came into my bay with a classic intermittent no-start condition. The owner had already replaced the fuel pump, convinced it was the problem, but the issue persisted. He was frustrated and out of pocket. We hooked up the scanner and found a U0109 ‘Lost Communication with Fuel Pump Control Module’ code. Instead of just throwing parts at it, we checked the FPCM’s location on the driver-side frame rail. The module’s casing was swollen and the connectors were green with corrosion. We installed one of our pre-programmed modules, and the truck fired up instantly and ran perfectly. It’s a textbook example of why diagnosing the FPCM first can save you time and money.
Is Your Truck Showing These Symptoms?
A failing FPCM can mimic a bad fuel pump. If you’re experiencing any of the following, this module is the likely solution. Watch for these common indicators:
- ✔ Engine cranks but will not start
- ✔ Stalling, especially when coming to a stop or at idle
- ✔ Severe engine hesitation or sputtering during acceleration
- ✔ Reduced engine power and poor performance
- ✔ Check Engine Light with specific diagnostic trouble codes (DTCs) such as P069E, P0230, or U0109
- ✔ A “Service Fuel System” message on the driver information center
A Straightforward Guide to Installation
Replacing the FPCM is a job most DIYers can handle with basic tools. Since we program the module before shipping, there’s no need for a scan tool or a trip to the dealer. Just bolt it on, plug it in, and you’re ready to go.
- Safety First: Disconnect the negative terminal from your vehicle’s battery.
- Locate the Module: On most Sierra/Silverado models, the FPCM is mounted on the driver’s side frame rail, often near the spare tire. On other GM vehicles, it may be in a different location (see fitment list).
- Disconnect and Remove: Carefully unplug the electrical connectors. Be gentle, as the plastic clips can become brittle. Then, unbolt the old module from the frame.
- Install the New Module: Bolt your new, pre-programmed FPCM into place. It’s a good idea to apply a small amount of dielectric grease to the connector pins to protect against future corrosion.
- Reconnect and Test: Securely plug in the electrical connectors. Reconnect the negative battery terminal. Turn the key to the ‘On’ position for a few seconds to prime the system, then start the engine.
Verified Vehicle Compatibility
This module is a direct replacement for a wide range of GM vehicles. Please verify your model and year below. This part replaces part numbers: 13501024, 15213110, 20759945, 20850907, 25785013, 25854536, 25866052, 25967325.
- Cadillac Escalade, ESV, EXT (2008-2009) – LH frame rail
- Chevrolet Avalanche 1500 (2008-2009) – LH frame rail
- Chevrolet Colorado (2009) – Rear center frame
- Chevrolet Express 1500 Van (2008-2009) – LH frame rail
- Chevrolet Silverado 1500 Pickup (2007 New Body Style, 2008-2009) – LH frame rail
- Chevrolet Suburban 1500 (2008-2009) – LH frame rail
- Chevrolet Tahoe (2008-2009) – LH frame rail
- Chevrolet Traverse (2009) – Rear crossmember
- GMC Acadia (2009) – Fuel Pump
- GMC Canyon (2009) – Rear center frame
- GMC Savana 1500 Van (2008-2009) – LH frame rail
- GMC Sierra 1500 Pickup (2007 New Body Style, 2008-2009) – LH frame rail
- GMC Sierra Denali (2008-2009) – LH frame rail
- GMC Yukon & Yukon XL 1500 (2008-2009) – LH frame rail
- Hummer H2 (2008-2009) – LH frame rail
- Hummer H3 (2009) – Rear frame
- Buick Enclave (2009) – Fuel Pump
- Saturn Outlook (2009) – Fuel Pump
- Saturn VUE (2008-2009) – RH rear engine compartment
Frequently Asked Questions
Do I really need to provide my VIN?
Yes, absolutely. Providing your VIN is mandatory. We use it to program the module with the exact GM software and calibrations for your specific vehicle. This ensures 100% compatibility and proper function, saving you from a costly trip to the dealership.
Is this part difficult to install?
Not at all. For most DIYers with basic hand tools, this is a straightforward job that takes less than an hour. Since it arrives pre-programmed, it’s a simple bolt-off, bolt-on process.
What happens if I don’t replace a failing FPCM?
Ignoring a failing FPCM will lead to worsening symptoms. You’ll experience more frequent stalling and no-start conditions, making your vehicle unreliable and unsafe. Eventually, your truck will not start at all, potentially leaving you stranded.
How do I know this is the problem and not my fuel pump?
While symptoms overlap, a key indicator for a bad FPCM is a diagnostic code like U0109 (Lost Communication with FPCM) or P069E (Fuel Pump Control Module Commanded On). A visual inspection of the module for corrosion or damage is also a strong clue. This module is a common failure point and a much more frequent issue than the in-tank pump on these models.
Where is this module located on my 2008 Sierra 1500?
On the 2007-2009 Sierra and Silverado 1500, the FPCM is typically mounted to the inside of the driver’s side frame rail, just forward of the spare tire.