Restore Peak Performance to Your Workhorse Van
Is your 2008 or 2009 Chevrolet Express 1500 van running rough, stalling, or showing a persistent Check Engine Light? These are common indicators of a failing Engine Control Module (ECM), the central computer responsible for managing your van’s engine, transmission, and emissions systems. A faulty ECM can lead to poor fuel economy, failed emissions tests, and even a no-start condition, taking your reliable van off the road. This replacement ECM, part number 12618028, is the definitive solution to restore your vehicle’s factory performance and reliability.
From the Diagnostic Bay
We had a 2009 Express 1500 work van come into the shop that was a real head-scratcher. The owner, a local plumber, complained of random stalling at traffic lights and a fluctuating idle that made him nervous on jobs. He’d already replaced the throttle body and a few sensors with no luck. After hooking up our professional scan tool, we noticed intermittent communication drops with the engine computer. We couldn’t find any wiring issues, which pointed us directly to an internal ECM failure. Once we installed a VIN-programmed module just like this one, the van ran perfectly. The communication was stable, the idle smoothed out, and the stalling issue was completely gone. It saved the owner from more costly and incorrect repairs.
Symptoms of a Failing Engine Control Module
- ✔ Persistent Check Engine Light (CEL) on your dashboard.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Rough or erratic idling.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Transmission shifting issues or harsh shifts.
- ✔ Failed state emissions inspection due to communication errors.
Why Choose Our 2008-2009 Express 1500 ECM?
This isn’t just a generic, off-the-shelf part. We provide a complete, plug-and-play solution tailored specifically to your vehicle. When you order, you provide us with your van’s Vehicle Identification Number (VIN). Our technicians then flash the module with the latest, most up-to-date software directly from GM. This critical step ensures that the computer is perfectly matched to your van’s specific configuration, including its engine, transmission, and factory options. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money. The module arrives at your door ready for a straightforward installation.
This ECM is a direct replacement for multiple service numbers, ensuring wide compatibility. It is guaranteed to fit and function correctly in vehicles originally equipped with service numbers such as 12597125, 12612397, 12594750, 12629019, 12635902, and 12611549. Please verify your original part number to confirm fitment.
Frequently Asked Questions
Do I need to have this ECM programmed by a dealer?
No. This ECM comes fully programmed to your vehicle’s specific VIN before it is shipped. It is a plug-and-play solution that does not require any additional programming by a dealer or mechanic, saving you hundreds of dollars.
What information do you need from me?
After you complete your purchase, we will need the 17-digit Vehicle Identification Number (VIN) from your 2008-2009 Express 1500. You can typically find this on your driver’s side dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Is any special ‘relearn’ procedure required after installation?
In some cases, a Case Variation Relearn (also known as Crankshaft Position Sensor Relearn) may be needed to clear certain trouble codes. This can be performed with most professional-grade scan tools. However, the vehicle will start and run without this procedure, which can be completed at a later time if necessary.
How do I know this will fit my vehicle?
This ECM is compatible with 2008-2009 Chevrolet Express 1500 and GMC Savana 1500 vans with the 4.3L engine. It also fits a wide range of other GM vehicles as listed in the fitment chart. The most accurate way to ensure compatibility is to match the service number on your original computer to one of the numbers listed, such as 12597125.
What is the warranty on this part?
This part comes with our standard warranty, which covers any defects in the module itself. Please refer to our website’s warranty page for complete details and duration of coverage.