Restore Peak Performance to Your GM Truck or SUV
Is your 2004 GMC Envoy XUV, Silverado, or Tahoe suffering from frustrating and unpredictable engine problems? A faulty Powertrain Control Module (PCM) is often the culprit behind issues like a persistent check engine light, rough idling, stalling, or a complete no-start condition. Get your trusted vehicle back on the road with this professionally programmed engine computer, designed to restore its original performance and reliability. This is the definitive solution for a failing ECU, providing a seamless fix that gets you back to driving with confidence. Finding the right 2004 Envoy XUV PCM replacement can be a challenge, but this unit is guaranteed to be the correct, reliable part for your vehicle.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing engine computer is the likely cause:
- Check Engine Light with PCM-related codes (e.g., P0601, P0606)
- Unexplained stalling or engine hesitation
- Poor fuel economy and reduced power
- Harsh or erratic automatic transmission shifting
- Failure to communicate with diagnostic scan tools
This pre-programmed PCM is the direct solution to these problems. We flash it with the latest GM software updates using your vehicle’s specific VIN, ensuring it works correctly right out of the box. This eliminates the need for expensive dealership programming and complex diagnostic procedures.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for installation, flashed specifically to your truck or SUV for a perfect match.
- ✔ Latest GM Software Updates: Ensures optimal engine performance, fuel efficiency, and emissions control.
- ✔ Direct-Fit Replacement: Guaranteed compatibility with service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN.
- ✔ Solves Common Driveability Issues: Puts an end to frustrating problems caused by a faulty computer, restoring smooth operation.
- ✔ Worry-Free Purchase: This unit is backed by our one-year replacement warranty.
Expert Mechanic’s Insight: Many people are tempted to grab a used computer from a salvage yard, but this is a critical mistake for modern vehicles. GM’s security system (VATS/Passlock) is tied directly to the PCM and the vehicle’s VIN. A mismatched computer will result in a no-start condition that can be incredibly difficult to diagnose. Our process of programming the module to your specific VIN before shipping is the single most important step in guaranteeing a successful repair. This makes the installation of your 2004 Envoy XUV PCM replacement as straightforward as possible.
Guaranteed Vehicle Fitment
This Electronic Control Module is a confirmed fit for a wide range of 2004 General Motors vehicles equipped with the 5.3L and 6.0L gasoline engines. Please verify your original part number matches one of the compatible service numbers listed above. Key models include:
- Buick Rainier
- Cadillac Escalade (ESV, EXT)
- Chevrolet Avalanche, Silverado, SSR, Suburban, Tahoe, Trailblazer EXT
- GMC Envoy (XL, XUV), Sierra, Sierra Denali, Yukon, Yukon XL
- Hummer H2
- Isuzu Ascender
This is the correct 2004 Envoy XUV PCM replacement to get your vehicle running properly again.
Frequently Asked Questions
What do I need to do after I purchase?
After you complete your order, you must provide us with your vehicle’s 17-digit VIN. We cannot program and ship your module without it. This ensures the computer has the correct software for your vehicle’s specific options.
Will I need to do any additional programming after installation?
In most cases, you will need to perform a security relearn procedure, which can typically be done without special tools and takes about 30 minutes. Instructions are readily available online or in your vehicle’s service manual. A crank position sensor relearn (CASE learn) may also be required, which needs a capable scan tool.
How do I find my original part number?
Your original part number, often called the Service Number (Serv. No.), is printed on the sticker of your current PCM. You will need to locate the module in your vehicle—typically under the hood near the airbox or under the battery tray—to read this number.
Will this fix my specific problem?
This module will correct issues directly caused by a failing computer, including internal processor faults and communication errors. However, it will not fix problems caused by other faulty components like sensors or wiring. Proper vehicle diagnosis is always recommended.
Is this a plug-and-play part?
Because we program it to your VIN, it’s as close to plug-and-play as possible. After the simple security relearn procedure, your vehicle should start and run correctly. This process is far simpler and more affordable than getting a module programmed at a dealership.