Restore Peak Performance to Your GM Truck or SUV
Is your Silverado, Sierra, Escalade, or Tahoe suffering from baffling engine issues? An erratic idle, poor fuel economy, stalling, or a persistent Check Engine Light can often be traced back to a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, its health is critical for your vehicle’s performance and reliability. This replacement PCM, part number 89017750, is the definitive solution to get your truck back to running like it just rolled off the factory floor.
We take the guesswork and hassle out of the repair. Unlike sourcing a module from a salvage yard, this unit comes professionally programmed specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) during checkout, and our technicians will flash the module with the latest, most stable software updates directly from General Motors. This ensures perfect compatibility and optimal function, eliminating the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2005 GMC Sierra 2500HD with the 6.0L come in that was driving the owner crazy. It would randomly stall at traffic lights, but never stored a trouble code. We checked fuel pressure, sensors, and wiring harnesses for hours. On a whim, we monitored the PCM’s internal temperature data and noticed it was spiking right before a stall. The thermal stress was causing an internal failure. We installed one of our pre-programmed modules, performed the quick security relearn, and the truck ran flawlessly. It’s a classic example of how a failing computer can mimic a dozen other mechanical problems.
Diagnosing a Faulty GM PCM 89017750
A failing PCM can manifest in numerous ways, often mimicking other sensor or component failures. If your vehicle is experiencing several of the following symptoms, the PCM is a likely culprit. This unit is the direct solution for these common issues.
- ✔ Persistent Check Engine Light (CEL) with various or no specific codes.
- ✔ Engine stalling or shutting off unexpectedly while driving or idling.
- ✔ Rough, inconsistent idling or surging RPMs.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Communication errors when trying to use an OBD-II scan tool.
- ✔ Misfire codes that persist even after replacing spark plugs, coils, and wires.
Plug-and-Play Installation with VIN Programming
Your vehicle’s computer is not a one-size-fits-all part. It contains specific data for your engine, transmission, emissions equipment, and even tire size. Our process makes this complex replacement simple. By programming the module with your VIN, we ensure that it is a direct, plug-and-play replacement. In most cases, installation is as simple as disconnecting the battery, swapping the module, and reconnecting the battery. Some vehicles may require a simple security relearn procedure (often called a key-cycle relearn) which takes about 30 minutes and requires no special tools. We provide clear instructions for this process. This service saves you hundreds of dollars in dealership labor and programming fees.
This module is a direct replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. By providing your VIN, you guarantee you receive a perfectly matched and updated GM PCM 89017750 for your exact application.
Frequently Asked Questions
Do I need to have this PCM programmed?
No. This PCM comes fully programmed to your vehicle’s specific VIN before it is shipped. You just need to provide your VIN at checkout. This saves you a trip to the dealership.
Where is the PCM located on my truck?
On most compatible GM trucks and SUVs like the Silverado, Tahoe, and Escalade, the PCM is located in the engine bay on the driver’s side, under or next to the battery, often mounted to the fender well.
What is a security relearn or CASE relearn?
A security relearn syncs the new PCM with your vehicle’s anti-theft system and can usually be done without tools. A CASE (Crankshaft Angle Sensor Error) relearn syncs the PCM with the crankshaft position sensor to prevent misfire codes. A CASE relearn requires a capable bi-directional scan tool and may be necessary after installation.
How do I provide my VIN?
You can enter your 17-digit VIN in the designated field during the checkout process or send it to us with your order number after purchase. Your VIN can be found on your driver’s side door jamb sticker or on the dashboard visible through the windshield.
Is this the correct part for my vehicle?
This module fits a wide range of 2003-2007 GM trucks and SUVs. The best way to ensure perfect fitment is to match the service number on your current module. By providing us with your VIN, we will verify compatibility and program it correctly for your specific vehicle.