Restore Your Truck’s Power and Reliability
Is your Silverado, Sierra, or Tahoe suffering from baffling electrical issues, poor performance, or a persistent check engine light? A failing Powertrain Control Module (PCM) is often the hidden culprit behind stalling, erratic shifting, and frustrating no-start conditions. This isn’t just an inconvenience; it’s a reliability issue that keeps your truck off the road or the job site. Get back in control with this direct-replacement, VIN-programmed PCM, engineered to restore your vehicle’s original performance and dependability.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This unit is the definitive solution for:
- Persistent Check Engine Light (CEL) with communication error codes (e.g., P0601, P0606)
- Harsh or erratic automatic transmission shifting
- Engine stalling, stumbling, or hesitating during acceleration
- Poor fuel economy and loss of power
- Complete no-start condition where the engine cranks but won’t fire
- Instrument cluster warning lights behaving erratically
This professionally programmed 2003-2007 Silverado 2500 PCM 89017734 is the reliable, straightforward fix you need. We take the guesswork out of the repair by flashing the module with the latest GM software updates specific to your vehicle’s VIN, ensuring it works correctly right out of the box.
Features & Tangible Benefits
- ✔ Plug & Play Ready: Arrives pre-programmed to your vehicle’s unique VIN. This critical step ensures all systems, from the engine to the transmission, communicate and perform exactly as the factory intended.
- ✔ Solves Frustrating Issues: Directly addresses the root cause of common GM truck problems, eliminating false sensor codes and restoring smooth engine operation and crisp shifting.
- ✔ Direct-Fit Replacement: Engineered to replace service number 89017734 and a wide range of other compatible part numbers, guaranteeing a perfect fit and proper electronic communication.
- ✔ Avoids Costly Dealership Bills: Get a high-quality, correctly programmed module without the excessive costs and wait times associated with a dealership service center.
- ✔ This unit is backed by our one-year replacement warranty. We stand behind our programming and the quality of our components, giving you confidence in your repair.
An Expert’s Note on GM Programming
“In my 20+ years of diagnostics, I’ve seen countless issues caused by improperly matched computers. On these GM P59 controllers, the programming is everything. It’s not just about getting the engine to start; it’s about precise fuel trim, transmission line pressure for smooth shifts, and even how the A/C compressor engages. Using a generic, non-VIN matched module is a recipe for chasing phantom problems. We program each 2003-2007 Silverado 2500 PCM 89017734 to the factory spec for your exact vehicle, ensuring every parameter is correct from the moment you plug it in.”
Frequently Asked Questions
Do I need to do anything after installing this PCM?
In most cases, you will need to perform a security relearn procedure (often called a Passlock or VATS relearn) 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 compatible scan tool.
How do I provide my vehicle’s VIN?
After you complete your purchase, please send us a message with your 17-digit Vehicle Identification Number (VIN). You can also add it as a note during the checkout process. We cannot ship your order until we receive your VIN, as the programming is specific to your truck.
What if my original part number is different?
This module, 2003-2007 Silverado 2500 PCM 89017734, is a replacement for multiple GM service numbers. Please check the detailed compatibility list provided on this page. As long as your vehicle and original service number are listed, this unit will be a correct, compatible replacement.
Will this fix my transmission shifting problems?
Yes, in many cases. The PCM controls the transmission’s electronic solenoids and shift points. If your transmission issues are electronic in nature (and not due to an internal mechanical failure), this correctly programmed module is designed to resolve those problems and restore smooth shifting.
Is this a difficult part to replace?
The physical replacement is straightforward for a DIY mechanic with basic tools. The PCM is typically located in the engine bay, under the battery tray or near the air filter box. The most important steps are disconnecting the vehicle’s battery first and ensuring the connectors are seated firmly upon installation.