Restore Your Yukon’s Peak Performance and Reliability
Is your 2004 GMC Yukon suffering from frustrating and unpredictable issues like stalling, a persistent check engine light, or erratic shifting? A failing Powertrain Control Module (PCM) is often the culprit, disrupting the core systems that keep your SUV running smoothly. This replacement PCM, service number 12586242, is the definitive solution to restore your vehicle’s factory performance and get you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause. This pre-programmed unit is designed to fix these problems directly:
- Check Engine Light (CEL) with various trouble codes (DTCs)
- Poor fuel economy and engine performance
- Rough or inconsistent idling
- Harsh or delayed automatic transmission shifting
- Vehicle failing to start or stalling intermittently
- Communication errors with diagnostic scan tools
Don’t let a bad module sideline your dependable truck. Installing this correctly programmed 2004 GMC Yukon PCM is the most effective way to resolve these complex electronic issues and restore the dependable operation you rely on.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash this module with the latest GM software updates using your Yukon’s specific VIN. This ensures perfect compatibility and function right out of the box.
- ✔ Plug & Drive Installation: Because it’s programmed for your vehicle, installation is simplified. In most cases, you will only need to perform a security relearn procedure, which can be done without special tools.
- ✔ Restores Original Performance: Corrects issues with fuel delivery, ignition timing, and transmission control, bringing back the smooth power and efficiency you expect from your GM truck.
- ✔ Broad GM Compatibility: This unit is a direct replacement for service numbers 12586242, 19299226, 89017738 and many others, fitting a wide range of GM trucks and SUVs from 2004.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty.
Expert Insight: The Brain of Your GMT800
The PCM in your 2004 Yukon is more than just an engine computer; it’s the central command center for the entire powertrain. It constantly analyzes data from dozens of sensors to manage everything from the air-fuel mixture to transmission shift points and torque converter lockup. When it fails, the symptoms can be confusing and widespread. Unlike a generic, non-programmed module, this unit is loaded with your vehicle’s exact calibration file. This precision is critical for the proper operation of your 5.3L or 6.0L engine, ensuring optimal power, fuel efficiency, and emissions compliance. This is the correct way to replace a 2004 GMC Yukon PCM.
Frequently Asked Questions
Do I need to send you my old computer?
No, there is no core charge or need to send in your original module. This is a direct purchase, and the unit you receive is yours to keep.
What information do you need from me?
After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We use this to load the correct GM-certified software and calibrations onto the PCM before shipping.
Is this difficult to install myself?
The physical installation is straightforward for someone with basic mechanical skills. It’s typically located under the hood on the driver’s side. After installation, you will likely need to perform a security relearn procedure (often called a VATS relearn), which pairs the new PCM to your vehicle’s anti-theft system. Instructions for this procedure are widely available online and do not require a mechanic’s scan tool.
Will this fix my specific problem?
This programmed 2004 GMC Yukon PCM is designed to correct all issues directly caused by a faulty computer. While it resolves the most common electronic and performance problems, we always recommend having a qualified technician properly diagnose your vehicle to rule out other potential issues like bad sensors or wiring.
How do I know if this part number is correct for my vehicle?
This module replaces a wide range of original service numbers, including 12586242, YFKD, YFKF, YFKH, and many more. The best way to ensure compatibility is to provide your VIN for programming. Our system will verify the correct software for your specific build.