Is Your GM Truck or SUV Running Rough?
A persistent check engine light, erratic shifting, a rough idle, or even a no-start condition in your Silverado, Sierra, or Escalade can be incredibly frustrating. These aren’t just annoyances; they’re signs that the brain of your vehicle—the Powertrain Control Module (PCM)—may be failing. When the PCM falters, it affects everything from fuel economy to engine performance, leaving you with an unreliable vehicle. It’s time to stop guessing and install a solution that restores your truck’s dependability and gets you back on the road with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, this VIN-programmed PCM is the definitive solution you need. A faulty module can trigger a wide range of Diagnostic Trouble Codes (DTCs), including communication errors (U-codes), false sensor readings, and performance-related faults. This unit is designed to resolve:
- Unexplained Check Engine Light illumination
- Engine stalling, sputtering, or hesitation
- Harsh or incorrect automatic transmission shifting
- Poor fuel mileage
- Complete no-start or intermittent starting problems
- Failure to communicate with diagnostic scan tools
This is a direct-fit replacement for your original unit, solving the root cause of these issues. Our 2003-2007 Silverado 2500 PCM 89017750 arrives ready for installation, taking the guesswork out of the repair.
Features & Real-World Benefits
- ✔ Plug-and-Play Installation: This module is professionally programmed to your vehicle’s specific VIN with the latest GM software updates before it ships. This critical step ensures seamless communication with your vehicle’s existing systems, eliminating the need for an expensive trip to the dealership.
- ✔ Restored Performance & Efficiency: By correcting faulty signals and logic, this PCM restores your engine’s original power, smooth shifting, and optimal fuel economy. Get your truck’s crisp, responsive performance back.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802, ensuring it’s the correct part for a wide range of GM trucks and SUVs.
- ✔ Peace of Mind Protection: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
An Expert’s Note on VIN Programming: As a mechanic for over 20 years, I’ve seen countless issues arise from using generic, unprogrammed modules. They can cause transmission damage, security system lockouts, and a host of new error codes. That’s why we insist on programming each PCM to your specific VIN. This process doesn’t just load generic software; it tailors the module to your truck’s exact factory options—from axle ratio to tire size. This ensures every component communicates correctly, just as the manufacturer intended, giving you a reliable and lasting repair.
By providing us with your VIN at checkout, you ensure that the 2003-2007 Silverado 2500 PCM 89017750 you receive is perfectly matched to your vehicle. This is the key to a successful and straightforward installation.
Frequently Asked Questions
Do I need to do anything after I install the PCM?
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 for your specific model. Some vehicles may also require a Crankshaft Position Sensor (CASE) relearn, which requires a capable scan tool.
How do I provide my VIN number?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We must have this information to program the module before we can ship your order.
Is this the correct part for my vehicle?
This PCM fits a wide variety of 2003-2007 GM trucks and SUVs. Please check the extensive compatibility list on this page or match one of the listed service numbers (e.g., 89017750, 12602802) to the one on your original module to confirm fitment.
What if my original part number isn’t listed?
If your part number is not on our list, please contact us with your VIN and original part number. We can verify compatibility and help you find the correct module for your vehicle.
Will this fix my transmission shifting problems?
Yes, in many cases, erratic or harsh shifting is caused by a faulty PCM. The PCM controls the transmission’s electronic solenoids, and if it sends incorrect signals, shifting performance will suffer. A properly programmed replacement like this one often resolves those issues.