Get Your Dependable Truck Back in Action
Is your 2004 Suburban 2500 letting you down? A failing Powertrain Control Module (PCM) can be the source of countless frustrating and intermittent issues, turning your reliable workhorse into a source of stress. This isn’t just an inconvenience; it’s a disruption to your work, your family trips, and your peace of mind. This replacement Engine Control Module is the definitive, hassle-free solution to restore your truck’s performance and get you back on the road with confidence. We take the guesswork out of the repair by programming the unit specifically for your vehicle using your VIN before it ever leaves our facility.
Common Symptoms & Your Solution
A faulty engine computer can manifest in various ways. If you’re experiencing any of the following, a failing PCM is a likely culprit. This unit is the direct solution for these problems:
- Erratic or harsh transmission shifting
- Poor fuel economy and engine performance
- Engine stalling, stumbling, or refusing to start
- Illuminated Check Engine Light with communication-related trouble codes (e.g., P0601, P0606)
- Seemingly random electrical or gauge issues
Instead of paying for expensive diagnostics and programming at a dealership, this pre-programmed 2004 Suburban 2500 PCM 12586242 arrives ready for a straightforward installation.
Features & Benefits
- ✔ Ready to Install, No Extra Programming: We flash this module with the latest GM software updates using your vehicle’s unique VIN. This saves you a costly trip to the dealer and eliminates compatibility headaches.
- ✔ Restored Engine & Transmission Performance: By installing a properly functioning and updated computer, you restore the precise fuel, spark, and transmission commands your truck needs to run its best.
- ✔ Guaranteed Fit and Function: This unit is a direct replacement for service number 12586242 and a wide range of other compatible part numbers, ensuring a perfect fit for your 2004 GM truck or SUV.
- ✔ A Cost-Effective Repair: Get a reliable, professionally programmed module without the high price tag and wait times associated with dealership service departments.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Brains of Your Workhorse
On a vehicle like the Suburban 2500, the PCM does more than just manage the engine. It’s the central command for the entire powertrain, including the heavy-duty transmission. When you’re towing a trailer or hauling a full load, precise communication between the engine and transmission is critical for performance and longevity. Our VIN-specific programming ensures these systems work together exactly as the engineers intended, protecting your investment and giving you the reliable power you depend on. This isn’t just a replacement part; it’s a restoration of your truck’s core operational integrity.
Stop chasing intermittent electrical ghosts and get the definitive fix. By providing us with your VIN upon purchase, you ensure that the 2004 Suburban 2500 PCM 12586242 you receive is perfectly matched to your vehicle’s specific configuration. It’s the smartest, most efficient way to solve your engine management problems and get your truck running right again.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM arrives at your door fully programmed to your vehicle’s VIN. In most cases, you will only need to perform a simple security relearn procedure which involves turning the key in the ignition. We provide easy-to-follow instructions for this process.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is a critical part of the order.
How can I be sure this fits my vehicle?
This PCM, part number 12586242, fits a wide variety of 2004 GM trucks and SUVs. The best way to confirm is to check the service number on your current computer. This unit replaces numbers 12586242, 19299226, 89017738, and many others listed in the description. Providing your VIN allows us to perform a final compatibility check.
Where is the PCM located on my 2004 Suburban 2500?
On most GM full-size trucks and SUVs from this era, including the Suburban 2500, the PCM is located in the engine bay on the driver’s side, under the battery tray or near the airbox.
Will this fix my check engine light?
If the check engine light and running issues are caused by a faulty PCM, this part is the correct solution. However, it is always essential to have your vehicle properly diagnosed to ensure the PCM is the root cause of the problem before ordering. This 2004 Suburban 2500 PCM 12586242 is designed to solve computer-related failures.