Restore Your Truck’s Power and Reliability
Is your 2004 GMC Yukon, Sierra, or other GM truck suffering from baffling issues like a persistent check engine light, erratic shifting, a rough idle, or even a no-start condition? Before you start replacing expensive sensors, the root cause is often a failing Powertrain Control Module (PCM). This VIN-programmed engine computer is the definitive, hassle-free solution to bring your vehicle back to its factory-spec performance and restore your driving confidence.
Common Symptoms of a Failing 2004 Yukon PCM
A faulty PCM can cause a wide range of frustrating problems. If you’re experiencing any of the following, this module is your solution:
- Check Engine Light: Particularly for internal module error codes like P0601, P0602, or P0606.
- Poor Performance: Noticeable loss of power, hesitation during acceleration, and decreased fuel economy.
- Transmission Issues: Harsh or delayed shifting, or getting stuck in one gear (limp mode).
- Stalling or No-Start: The engine may stall intermittently or refuse to start at all, even with a good battery and starter.
- Erratic Engine Behavior: Unexplained rough idling, misfires, or stumbling.
This replacement 2004 Yukon PCM 89017738 is meticulously tested and programmed to solve these issues, acting as the new, reliable brain for your truck’s powertrain.
Features & Benefits
- ✔ Plug-and-Play Ready: This module arrives pre-programmed to your vehicle’s specific VIN. No expensive trips to the dealer for flashing are required.
- ✔ Latest GM Software: We flash each unit with the newest, most stable software updates from General Motors, ensuring optimal performance and efficiency.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for service numbers 12586242, 19299226, 89017738, and many others, guaranteeing a seamless installation.
- ✔ Solves Drivability Problems: Directly addresses the root cause of common engine and transmission issues, saving you time and money on unnecessary diagnostics.
- ✔ This unit is backed by our one-year replacement warranty.
An Expert’s Note on Programming
With over two decades of hands-on diagnostic experience, I’ve seen countless vehicle owners chase expensive sensor and wiring problems when the true culprit was a failing PCM. The programming is just as critical as the hardware. Our process ensures the module we send you has the correct software specifically for your VIN. This isn’t just a replacement part; it’s a restoration of your vehicle’s core logic, ensuring the engine, transmission, and all related systems communicate exactly as the factory intended.
Don’t let a faulty computer keep your dependable truck off the road. By installing this pre-programmed 2004 Yukon PCM 89017738, you are making a smart investment in your vehicle’s longevity and reliability. Simply provide your VIN at checkout, and we’ll handle the complex programming for you.
Frequently Asked Questions
Do I need to get this computer programmed?
No. This is the biggest benefit of our service. We program the computer to your vehicle’s specific VIN before we ship it. It arrives ready for installation.
Where do I provide my vehicle’s VIN?
You can add your 17-digit VIN in the notes section during checkout. If you forget, don’t worry—we will contact you to get the necessary information before programming and shipping your part.
Will this fix my check engine light?
If your check engine light is caused by an internal failure of the original PCM (common codes include P0601-P0606), then this part is the correct fix. However, you should always diagnose the trouble codes to ensure the problem isn’t a separate sensor or wiring issue.
What is the security relearn procedure?
After installation, you may need to perform a simple security relearn. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating this cycle 2-3 times. This allows your vehicle’s anti-theft system to recognize the new PCM. Instructions are included with your order.
Is this part difficult to install?
For most 2004 GM trucks and SUVs like the Yukon, the PCM is located in the engine bay (often under the battery tray or next to the airbox) and is held in by a few bolts. The most important step is to disconnect the vehicle’s battery before you begin. It’s a straightforward job for a DIYer with basic tools.
My original part has a different service number. Will this still work?
Yes. This module is the correct hardware replacement for a wide range of service numbers, including 12586242, 19299226, 89017738, YFKD, YFKF, and more. As long as your vehicle is a 2004 model listed in the compatibility chart, our VIN programming ensures it will function perfectly.