Restore Peak Performance to Your GM Truck or SUV
Is your Silverado, Sierra, or Tahoe suffering from erratic engine behavior, poor fuel economy, or a persistent check engine light? These are classic signs of a failing Powertrain Control Module (PCM), the central computer responsible for managing your engine’s performance. This direct-fit replacement PCM, part number 28042802, is the definitive solution to get your vehicle running smoothly and reliably again. We take the guesswork out of the repair by programming the module specifically for your vehicle using your VIN, ensuring a seamless installation and proper function right out of the box.
Diagnosing Your Silverado 1500 PCM Failure
A faulty PCM can manifest in numerous ways, often mimicking other sensor or component failures. If you’re experiencing a combination of the issues below, it’s highly likely your engine’s computer is the culprit. Replacing it with a correctly programmed unit is essential for restoring your vehicle’s drivability and efficiency.
Expert Pro Tip
Expert Pro Tip
Before installing your new PCM, it’s crucial to perform a Crankshaft Variation Relearn procedure, often called a CASE relearn. This procedure calibrates the new PCM to the specific variations of your engine’s crankshaft position sensor. Failing to do this can result in a P1336 trouble code and inaccurate misfire detection. Most professional-grade scan tools have this function, and it’s a critical final step for a successful repair.
Common Symptoms of a Bad PCM
- ✔ Check Engine Light is on with various communication or sensor codes (e.g., U-codes, P0601-P0606).
- ✔ Engine stalling, stumbling, or misfiring unexpectedly.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ A noticeable decrease in fuel economy.
- ✔ The engine cranks but refuses to start.
- ✔ Failure to pass an emissions test.
- ✔ Gauges on the instrument cluster behaving erratically or not working at all.
Plug-and-Play Solution with VIN Programming
Don’t settle for a generic, unprogrammed module that will require expensive trips to the dealership. We simplify the process. After you place your order, simply provide us with your vehicle’s 17-digit VIN. Our technicians will flash the module with the latest GM-certified software updates specific to your truck’s configuration. This ensures all engine, transmission, and emissions parameters are perfectly matched, just like the original unit. This service makes the replacement of your Silverado 1500 PCM as straightforward as possible.
This module is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, and 89017734. It fits a wide range of popular GM trucks and SUVs from 2003 to 2007, such as the Chevrolet Avalanche, Tahoe, Suburban, GMC Sierra, Yukon, Cadillac Escalade, and Hummer H2. Please verify the extensive fitment list to confirm compatibility with your specific model and year.
Frequently Asked Questions
Expert Pro Tip
Before installing your new PCM, it’s crucial to perform a Crankshaft Variation Relearn procedure, often called a CASE relearn. This procedure calibrates the new PCM to the specific variations of your engine’s crankshaft position sensor. Failing to do this can result in a P1336 trouble code and inaccurate misfire detection. Most professional-grade scan tools have this function, and it’s a critical final step for a successful repair.