Is Your Truck Running Rough, or Not at All?
A failing Engine Control Module (PCM) can bring your 2004 Silverado 2500 to a grinding halt, causing immense frustration and costly downtime. If you’re dealing with a no-start condition, erratic engine behavior, or persistent check engine lights that other repairs haven’t fixed, the brain of your engine is likely the culprit. This isn’t just an inconvenience; it’s a critical failure that compromises your truck’s power, reliability, and fuel efficiency. It’s time for a definitive solution that gets you back to work and back on the road with confidence.
Common Symptoms & Your Solution
If your vehicle is experiencing any of the following issues, this professionally programmed PCM is the reliable fix you need:
- Engine misfires, stumbling, or stalling
- Harsh or incorrect automatic transmission shifting
- No communication with your scan tool
- Instrument cluster warning lights (Check Engine, ABS, etc.)
- Complete no-start or no-spark condition
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
This is a genuine OEM Powertrain Control Module, service number 12586242, which is the direct replacement for a wide range of 2004 GM trucks and SUVs. We take the guesswork and hassle out of the repair by pre-programming it specifically for your vehicle using your VIN. This ensures it works seamlessly with your truck’s existing systems right out of the box.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: This module arrives ready for installation. We flash it with your vehicle’s specific VIN and the latest GM software updates, eliminating the need for an expensive trip to the dealership.
- ✔ Restored Engine Performance: By installing a correctly functioning PCM, you’ll restore your engine’s original power, throttle response, and smooth operation.
- ✔ Improved Fuel Economy: A properly functioning computer ensures the engine’s air/fuel mixture and timing are precise, helping you get the most out of every gallon.
- ✔ Direct OEM Fit: Guaranteed compatibility with vehicles requiring service number 12586242 or any of the cross-referenced part numbers listed, including YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of Correct Programming
As a technician with over 20 years of experience, I’ve seen countless vehicle owners try to save a few dollars by installing a used, non-programmed computer from a salvage yard. This almost always leads to more problems. A PCM is not a simple part; it’s coded to a specific vehicle’s options, security system (Passlock/VATS), and emissions equipment. Our VIN-programming service isn’t just a convenience—it’s a critical step that ensures every parameter is set correctly for your 2004 Silverado 2500 PCM 12586242, preventing no-start issues, communication errors, and improper engine function. We deliver a component that is truly ready to solve your problem, not create new ones.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle all the programming before shipment. This module will arrive flashed with the latest GM software updates for your specific VIN. In most cases, you will only need to perform a simple security relearn procedure, which takes about 30 minutes and does not require any special tools. We include instructions for this process.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to program the computer correctly for your truck’s specific engine, transmission, and options.
Where can I find my VIN?
Your VIN can be found on a metal tag on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, and on your vehicle’s registration and insurance documents.
How do I know if this part number is correct for my vehicle?
The best way is to check the service number on your original computer. This unit, 12586242, replaces many service numbers. You can also use the comprehensive fitment list on this page or send us your VIN, and we can confirm compatibility for you before you order.
Will this fix my check engine light?
If the check engine light and associated running problems are caused by a faulty PCM, then yes, this will be the solution. It is always recommended to have your vehicle properly diagnosed to ensure the PCM is the root cause of the issue before ordering a replacement.