Restore Peak Performance to Your GM Truck or SUV
Is your Chevrolet Silverado, GMC Sierra, or Cadillac Escalade suffering from mysterious engine problems? A faulty Powertrain Control Module (PCM), often called the engine computer, is a common culprit behind issues that can sideline your vehicle. This direct-fit replacement PCM, part number 89017734, is the definitive solution to restore your truck’s reliability, power, and efficiency. We take the guesswork out of the repair by pre-programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures a seamless installation process and immediate compatibility with your truck’s systems.
The Brain of Your Engine: Why a Healthy PCM is Crucial
The PCM is the central command center for your vehicle’s powertrain. It constantly analyzes data from dozens of sensors to manage critical functions like fuel injection, ignition timing, transmission shifting, and emissions controls. When it begins to fail, the symptoms can be widespread and often misdiagnosed, leading to costly and unnecessary repairs. Replacing a faulty module with a correctly programmed unit is essential for a lasting fix. This unit is a reliable replacement for a wide range of popular GM trucks and SUVs from 2003 to 2007, making it a versatile solution for many owners.
From the Diagnostic Bay
We once had a 2006 GMC Sierra 2500 come into the shop with what the owner was convinced was a bad transmission. It was shifting harshly and sometimes wouldn’t shift out of first gear. After checking the transmission fluid and performing a full diagnostic scan, we found no specific transmission fault codes. However, we noticed intermittent communication loss between the PCM and the Transmission Control Module (TCM). The issue wasn’t a mechanical failure in the transmission but a failing driver within the original PCM. By installing a new, VIN-programmed Silverado 3500 PCM, we resolved the communication error and the truck shifted perfectly, saving the customer thousands in potential transmission work.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) that won’t clear
- ✔ Engine stalling, stumbling, or misfiring
- ✔ No-start or hard-starting conditions
- ✔ Noticeable decrease in fuel economy
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Failure to pass state emissions inspections
- ✔ Communication errors with diagnostic scan tools
Your Plug-and-Play Solution: The VIN Programming Advantage
Don’t waste time and money at a dealership for expensive programming. Our service is simple: after you place your order, provide us with your vehicle’s VIN. Our technicians will then flash this module with the latest, most stable GM-approved software specific to your truck’s engine, transmission, and factory options. This ensures that when the part arrives, it’s ready to be installed. While the installation is straightforward for any competent mechanic or DIYer, some vehicles may require a simple security relearn procedure (also known as a CASE relearn) to sync the new PCM with your vehicle’s anti-theft system. This procedure can often be completed without special tools.
This module is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, and 28042802, ensuring broad compatibility. By ordering this pre-programmed Silverado 3500 PCM, you’re not just buying a part; you’re getting a comprehensive solution that gets you back on the road with confidence.
Frequently Asked Questions
Why do you need my VIN?
Your VIN (Vehicle Identification Number) allows us to program the PCM with the exact software calibration for your truck’s specific engine, transmission, tire size, and other factory-installed options. This ensures perfect compatibility and performance right out of the box.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the module. However, most GM vehicles will require a security relearn procedure to sync the new PCM with the ignition keys. This can often be done without a scan tool and instructions are widely available.
Will this fix my check engine light?
If the check engine light is on due to an internal failure of the original PCM (e.g., processor faults, driver circuit errors), then this replacement module will solve the problem. It’s crucial to properly diagnose the fault codes before ordering to confirm the PCM is the root cause.
What does ‘flashed with the newest updates’ mean?
Manufacturers like GM often release software updates to fix bugs, improve transmission shifting, or enhance engine efficiency that were discovered after the vehicle was built. We program your new PCM with the latest available software, so you benefit from all of these factory improvements.
Is this compatible with my 2004 GMC Yukon?
Yes, this PCM is compatible with a wide range of GM trucks and SUVs from 2003-2007, including the GMC Yukon, Chevrolet Tahoe, Cadillac Escalade, and Hummer H2. Please check the detailed fitment list on this page to confirm compatibility with your specific model and engine.