Get Your Workhorse Back on the Road
Is your Chevrolet Express or GMC Savana van running rough, shifting erratically, or refusing to start? A failing Powertrain Control Module (PCM) can bring your business to a grinding halt, costing you time and money. This replacement PCM is the definitive solution to get your vehicle running reliably again. It arrives professionally programmed to your vehicle’s specific VIN with the latest GM software updates, eliminating guesswork and ensuring a smooth installation process. Stop chasing phantom electrical issues and restore the dependable performance your truck or van was built for.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous frustrating ways. If you’re experiencing any of the following, this module is the solution you need:
- Severe hesitation or stumbling during acceleration
- Random stalling or no-start conditions
- Harsh or unpredictable transmission shifting
- Check Engine Light with communication error codes (e.g., U0100)
- Diagnostic Trouble Codes (DTCs) pointing to internal module failure, such as P0601, P0602, or P0606
- Reduced fuel economy and poor overall performance
This programmed 2005-2007 Express 3500 PCM is engineered to resolve these issues by restoring the critical link between your engine, transmission, and other vehicle systems.
Features & Benefits
- โ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN and the newest GM calibrations, ensuring perfect compatibility and function right out of the box.
- โ Plug-and-Play Design: No need for an expensive trip to the dealership for programming. Once you perform the simple security relearn, your vehicle is ready to go.
- โ Restored Drivability: Experience smoother shifting, a stable idle, and the responsive power your engine was designed to deliver.
- โ Fixes Common DTCs: Directly addresses internal processor faults and communication errors that leave other mechanics guessing.
- โ Broad GM Compatibility: An exact replacement for part numbers 89017749, 12589462, and 12602801, fitting a wide range of GM trucks and vans.
- โ This unit is backed by our one-year replacement warranty.
An Expert’s Tip: The Programming is Everything
As a tech with two decades of experience, I’ve seen countless vehicle owners waste time and money on junkyard computers. You might save a few dollars initially, but that un-programmed module is just a metal box. Getting it programmed locally can be a nightmare of finding a willing shop with the right equipment. This programmed 2005-2007 Express 3500 PCM bypasses all that hassle. It arrives ready to work, loaded with the correct software for your specific vehicle. It’s the difference between a week of downtime and getting back on the job in an afternoon.
Frequently Asked Questions
How does the programming process work?
It’s simple. After you complete your purchase, you will provide us with your vehicle’s 17-digit VIN. Our technicians will then use official GM equipment to load the latest, most compatible software for your exact vehicle configuration onto the module before it ships.
Will I need to do anything after I install it?
Yes. While the main engine and transmission programming is done, you will need to perform a security relearn procedure (often called a ‘CASE learn’ or ‘Passlock relearn’). This syncs the new PCM with your vehicle’s anti-theft system. This procedure can typically be done without special tools and instructions are readily available online for your specific model.
Is this compatible with my Silverado or Sierra truck?
Absolutely. While the title focuses on the Express van, this module is a direct fit for a wide range of GM vehicles, including the Silverado, Sierra, Suburban, Yukon XL, and Savana, particularly those with the 4.3L or 8.1L gasoline engines within the specified year ranges. Please check the detailed fitment list to confirm for your exact model.
What happens if I provide the wrong VIN?
The programming is specific to the VIN you provide. An incorrect VIN will result in a module that will not work with your vehicle. Please double-check your VIN from your driver’s side door jamb sticker or dashboard plate before sending it to us to ensure compatibility.
How quickly will this ship after I provide my VIN?
We pride ourselves on quick turnaround. Once we receive your VIN, programming is typically completed within one business day, allowing us to ship your ready-to-install part promptly.