Restore Your Truck’s Core Performance & Dependability
Is your 2004 Silverado 2500 letting you down with frustrating issues like rough idling, poor fuel economy, erratic shifting, or even a no-start condition? A failing Powertrain Control Module (PCM) can bring your workhorse to a grinding halt, costing you valuable time and money. This professionally programmed Engine Control Module is the definitive, hassle-free solution to restore your truck’s factory performance and get you back on the job with confidence. We program this module specifically to your truck’s VIN, ensuring it works seamlessly with your vehicle’s systems right out of the box.
Common Symptoms of a Failing PCM & Your Solution
If you’re experiencing any of the following, a faulty module is the likely culprit. This replacement 2004 Silverado 2500 PCM is engineered to resolve these exact problems:
- Persistent Check Engine Light (CEL)
- Engine stalling or misfiring unexpectedly
- Noticeable decrease in fuel mileage
- Harsh or incorrect automatic transmission shifting
- Failure to start, even with a good battery and starter
- Communication error codes with diagnostic scan tools
Features & Benefits
- ✔ VIN-Programmed for Your Truck: We flash this module with the latest GM software updates using your vehicle’s unique VIN. This ensures perfect compatibility and function, eliminating the need for expensive dealership programming.
- ✔ Plug-and-Play Installation: Once you receive the module, installation is straightforward. In most cases, after a simple security relearn procedure, you’ll be ready to go.
- ✔ Guaranteed Compatibility: This computer is a direct replacement for service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN.
- ✔ Restored Engine Efficiency: A properly functioning PCM ensures your engine receives the correct fuel and timing inputs, restoring lost power and fuel economy.
- ✔ One-Year Warranty: This unit is backed by our one-year replacement warranty for your complete peace of mind.
Expert Insight: The Brain of Your Operation
From our 20+ years of experience, we know the PCM is the undisputed brain of your vehicle. It controls everything from the air-fuel mixture and spark timing to transmission shift points. When it fails, the symptoms can be confusing and mimic other component failures. By replacing your faulty 2004 Silverado 2500 PCM with our VIN-programmed unit, you’re not just swapping a part—you’re transplanting a healthy, updated brain into your truck, ensuring all related systems communicate and operate exactly as the manufacturer intended.
Frequently Asked Questions
Do I need to program this module myself?
No. This is the core of our service. We program the module to the VIN you provide before we ship it. It arrives ready for installation, saving you a trip to the dealership.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We will provide clear instructions on how to do this. We cannot ship your part until we receive this information.
Will this fit my vehicle if it’s not a Silverado 2500?
Yes, this module fits a wide range of 2004 GM trucks and SUVs. This includes models like the Sierra, Tahoe, Suburban, Yukon, Escalade, Hummer H2, and more, as long as the service number on your original module matches one of the numbers listed in the description (e.g., 12586242, YHTN).
Is a ‘security relearn’ procedure required after installation?
Yes, for most GM vehicles of this era, a simple security relearn procedure (also known as a CASE relearn or Passlock relearn) is required. This process syncs the new PCM with your vehicle’s anti-theft system and can typically be done in your driveway without any special tools. Instructions are widely available online, or your mechanic can perform it quickly.
How can I be sure this is the part I need?
The best way to confirm compatibility is to match the service number printed on your current PCM’s label to one of the numbers we have listed. If you are diagnosing a problem, this 2004 Silverado 2500 PCM is the solution for issues directly related to the computer itself, such as internal circuit failure or software corruption.