Is Your GM Truck or SUV Experiencing Engine Problems?
If you’re dealing with a persistent Check Engine Light, poor fuel economy, erratic engine behavior, or even a no-start condition in your 2003-2007 GM truck or SUV, a failing Powertrain Control Module (PCM) is a very likely culprit. The PCM is the central computer for your vehicle, managing everything from fuel injection and ignition timing to transmission shifting and emissions controls. When it begins to fail, it can cause a cascade of frustrating and difficult-to-diagnose issues that can leave your vehicle unreliable.
The Direct Solution for a Failing Engine Computer
Don’t let a faulty computer keep your powerful truck off the road. This replacement PCM, service number 28042802, is the definitive solution to restore your vehicle’s performance and reliability. Unlike a generic module from a parts store or salvage yard, this unit comes fully programmed to your specific vehicle using your VIN. We install the latest, most stable software updates from GM, ensuring optimal engine performance, fuel efficiency, and transmission function. This eliminates the need for an expensive trip to the dealership for programming, saving you time and money.
Expert Pro Tip
Expert Pro Tip
Before replacing your PCM, always perform a thorough check of the vehicle’s main power and ground connections. A loose or corroded ground wire, particularly the main ground from the battery to the engine block and chassis, can mimic the symptoms of a failed PCM. A few minutes with a wrench can sometimes save you hundreds of dollars.
Common Symptoms of a Faulty GM PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ A complete no-start or crank-no-start condition.
- ✔ Noticeable decrease in fuel economy.
- ✔ Failure to pass state emissions testing.
- ✔ Communication errors with diagnostic scan tools.
Why Choose Our Programmed GM PCM?
Getting your truck back to factory-spec operation is our priority. This module is a direct-fit replacement for a wide range of popular GM vehicles, including the Silverado, Sierra, Suburban, Tahoe, Yukon, Escalade, and Hummer H2. By providing us with your VIN during checkout, you receive a unit that is ready for installation right out of the box. The process is straightforward: disconnect the battery, swap the old module for the new one, and perform a simple security relearn procedure (often called a CASE relearn or Passlock relearn), which can be done without special tools. This puts you back in control of your repair and gets you back on the road quickly and confidently.
This module is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, and 89017734. Verifying your service number or providing your VIN ensures you get the exact part you need for a successful repair.
Frequently Asked Questions
Expert Pro Tip
Before replacing your PCM, always perform a thorough check of the vehicle’s main power and ground connections. A loose or corroded ground wire, particularly the main ground from the battery to the engine block and chassis, can mimic the symptoms of a failed PCM. A few minutes with a wrench can sometimes save you hundreds of dollars.