Is your 2008-2009 Chevrolet Express 1500 van running poorly, stalling, or showing a persistent Check Engine Light? These are common indicators of a failing Powertrain Control Module (PCM), the central computer responsible for managing your engine’s performance, fuel economy, and emissions. Don’t let a faulty computer keep your work van off the road. This genuine GM electronic control module, part number 12618028, is the definitive solution to restore your vehicle’s reliability and performance.
From the Diagnostic Bay
We recently had a 2009 Express 1500 in the shop with a classic complaint: intermittent stalling at stoplights and a check engine light with codes for multiple sensor circuits. The owner had already replaced the throttle body and a couple of sensors with no luck. After connecting our diagnostic scanner, we noticed the live data from the sensors was erratic and inconsistent. This pointed directly to the PCM itself being the source of the problem, not the individual components. By installing a VIN-programmed PCM like this one, we were able to solve all the issues in one go, saving the customer from further unnecessary parts-swapping and frustration. A correct diagnosis is key.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) on your dashboard.
- ✔ Engine stalling, stumbling, or misfiring unexpectedly.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Communication errors with diagnostic scan tools.
The Plug-and-Play Solution for Your Express 1500 PCM 12618028
What sets this module apart is our professional programming service. Before this PCM ships, we flash it with the latest official GM software updates specifically for your vehicle. All we need is your van’s 17-digit Vehicle Identification Number (VIN). This critical step ensures that the module communicates perfectly with your van’s engine, transmission, and other systems right out of the box. You get a component that is ready for installation, saving you a costly trip to the dealership for programming.
This module is a direct replacement for multiple service numbers, including 12597125, 12612397, 12594750, 12629019, 12635902, and 12611549. It is also compatible with a wide range of other GM vehicles, as detailed in the fitment list. This ensures you are getting the correct, updated part for your specific application, restoring factory performance and drivability. Installation is straightforward for a knowledgeable technician, and in most cases, a simple security relearn procedure is all that’s needed to get you back on the road.
Frequently Asked Questions
Do I need to get this PCM programmed by a dealer?
No. We handle the programming for you before shipment. Simply provide your vehicle’s VIN during or after checkout, and the module will arrive ready for installation, flashed with the latest GM software for your specific vehicle.
Where is the PCM located on my 2008-2009 Express 1500?
On the 2008-2009 Express 1500 van, the Powertrain Control Module is typically located in the engine compartment on the driver’s side, often near the battery or firewall area.
Is this part difficult to install?
The physical replacement is straightforward for someone with mechanical experience. It involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. After installing the new one, you may need to perform a security or CASE relearn procedure, which can often be done without special tools. Instructions are widely available online.
How do I provide my VIN?
You can add your 17-digit VIN to the notes section during checkout. If you forget, we will contact you via email after your purchase to request the information needed for programming.
Will this module fit other vehicles besides the Express van?
Yes, this PCM is compatible with a wide array of GM vehicles from the same era, including certain model years of the Silverado, Sierra, Malibu, Cobalt, HHR, and more. Please refer to the detailed fitment list on this page to confirm compatibility with your specific make, model, and engine.