Restore Peak Performance to Your GM Truck or SUV
Is your Silverado, Sierra, Tahoe, or Yukon suffering from frustrating issues like a persistent check engine light, erratic shifting, stalling, or a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that manages your vehicle’s engine and transmission. Don’t let a faulty module keep you off the road. This direct-fit PCM, part number 89017750, is the reliable, straightforward solution to get your truck running smoothly again.
Unlike generic modules that require expensive trips to the dealership for programming, this unit arrives at your door ready for installation. We flash it with the latest official GM software updates, specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures perfect communication between all vehicle systems, restores original performance and fuel efficiency, and resolves many software-related drivability problems that older modules may have.
From the Diagnostic Bay
We had a 2005 GMC Sierra 2500 in the shop that was driving the owner crazy. It would randomly stall at stoplights and had a harsh 1-2 shift that felt like being rear-ended. The owner had already replaced the throttle body and a few sensors with no luck. After hooking up our scanner, we saw communication errors with the PCM. We installed one of these VIN-programmed modules, performed a quick security relearn, and the truck drove like it just rolled off the factory line. The smooth shifts and stable idle were back. It’s a perfect example of how the right, properly programmed component is key to fixing complex electronic issues.
Is Your Vehicle Exhibiting These Symptoms?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty module is a likely culprit:
- ✔ Unexplained Check Engine Light illumination
- ✔ Harsh or delayed automatic transmission shifting
- ✔ Engine stalling, stumbling, or misfiring
- ✔ Poor fuel economy
- ✔ Vehicle won’t start, but the battery and starter are good
- ✔ Communication error codes (U-codes) stored in the system
- ✔ Failure to pass emissions testing
The Reliable Solution: A Programmed GM PCM 89017750
This module is a direct replacement for a wide range of 2003-2007 General Motors trucks and SUVs. It serves as a replacement for multiple service numbers, including 89017750, 12582605, 12589463, 12602802, 89017734, and 28042802. By providing us with your VIN during checkout, you guarantee that you receive a module that is not just compatible, but perfectly matched to your vehicle’s specific configuration, including engine size, transmission type, and emissions equipment. This eliminates guesswork and ensures a seamless repair process.
Installation Note
On most compatible models like the Silverado, Sierra, and Tahoe, the PCM is located on the driver’s side of the engine bay, typically under or near the battery tray. While the physical replacement is straightforward, a security relearn procedure (also known as a CASE relearn or Passlock relearn) will be necessary after installation to sync the new PCM with your vehicle’s anti-theft system. This procedure can often be completed without special tools and instructions are widely available.
Frequently Asked Questions
Why do I need to provide my VIN?
Your VIN (Vehicle Identification Number) allows us to load the exact, correct GM factory software for your truck’s specific engine, transmission, and options. This ensures perfect compatibility and performance, just like the original module.
Is this a plug-and-play part?
Almost. The module comes fully programmed for your vehicle’s powertrain. However, after installation, you will need to perform a security relearn procedure so the PCM can recognize your vehicle’s keys and anti-theft system. This is a standard step for this type of repair.
How do I know if my PCM is definitely the problem?
While the symptoms listed are strong indicators, a definitive diagnosis is best. This usually involves a professional mechanic using a scan tool to check for communication error codes (U-codes) or other PCM-specific faults. Ruling out sensor or wiring issues first is always recommended.
Where is the PCM located on my truck?
For the majority of GM trucks and SUVs from this era (Silverado, Sierra, Suburban, Yukon, etc.), the PCM is found in the engine compartment on the driver’s side, mounted to the frame rail below the battery.
This part number replaces several others. Is that normal?
Yes, this is very common. Manufacturers often consolidate and update parts over time. Part number 89017750 is an approved service replacement for all the listed compatible service numbers, containing the most recent software and hardware revisions.