Get Your Work Van Back on the Road, Fast.
When your 2004 Chevy Express 2500 is down, every minute costs you time and money. An unreliable engine computer can cause frustrating, intermittent problems that are difficult to track down, from stalling at intersections to refusing to start altogether. This Powertrain Control Module (PCM) is the definitive solution, arriving at your door fully programmed to your van’s specific Vehicle Identification Number (VIN). It’s designed to restore the factory performance and dependability you need to get the job done.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing module is the likely culprit. This unit is the direct fix for:
- Intermittent or complete no-start conditions
- Poor engine performance, hesitation, or stalling
- Reduced fuel economy
- Active Check Engine Light with communication codes (e.g., U-codes)
- Diagnostic Trouble Codes (DTCs) related to internal module failure, such as P0601, P0602, P0604, or P0606
- Erratic transmission shifting or solenoid codes
Installing this professionally programmed 2004 Express 2500 PCM replacement module resolves these issues by restoring the critical link between your vehicle’s engine, transmission, and sensors.
Features & Tangible Benefits
- ✔ Programmed to Your VIN: We flash the module with your vehicle’s exact VIN and the latest GM software updates. This ensures it works seamlessly with your specific options and systems, eliminating the need for an expensive trip to the dealership.
- ✔ Plug-and-Play Installation: Once installed, you simply need to perform a straightforward security relearn procedure (instructions included). No special tools are required.
- ✔ Restores Original Performance: By using the newest factory calibrations, this module ensures your engine and transmission operate at peak efficiency for optimal power and fuel mileage.
- ✔ Rigorously Inspected: Each module is thoroughly inspected to ensure it meets strict quality standards, giving you confidence in its long-term reliability.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of Correct Programming
As a technician, I’ve seen countless vehicle issues caused by improperly matched modules. Simply swapping a used computer from another vehicle often leads to a no-start condition due to the GM Passlock/Passkey security system. Our process eliminates that entire headache. By programming the module to your VIN before we ship, we ensure the foundational software is a perfect match. This makes the final security relearn process smooth and successful, getting you back on the road without the complex troubleshooting that plagues so many DIY computer swaps.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you will receive an email prompting you for your vehicle’s 17-digit VIN. You can simply reply to that email with the information. We cannot ship your part until we receive the VIN.
Do I need to have this programmed by a dealer after I receive it?
No. This module arrives fully programmed to your vehicle’s specifications. The only step required after installation is a simple security relearn procedure, which you can do yourself in about 15-30 minutes. Instructions are provided.
Is this the correct part for my vehicle?
This module, part number 89017739, fits a wide range of 2004 GM vehicles as listed in the fitment chart. The most important step is providing us with your VIN so we can confirm compatibility and load the correct software for your specific make, model, and engine.
What if my original part number is different?
This module is a direct replacement for several part numbers, including 12586243 and 89017739. As long as your vehicle is on the compatibility list, our VIN programming process will ensure it functions correctly, even if the number on your old part is slightly different.
What tools are needed for the security relearn procedure?
No special tools are required. The procedure only involves turning the ignition key on and off in a specific timed sequence. It’s a simple process designed to be performed by the vehicle owner.
Don’t let a faulty computer keep your business parked. Order your pre-programmed 2004 Express 2500 PCM replacement today and restore the reliability your work demands.