Restore Peak Performance to Your GM Truck or Van
Is your truck or van plagued by a persistent check engine light, erratic performance, or a frustrating no-start condition? A failing Powertrain Control Module (PCM) is often the culprit, leaving you with a vehicle you can’t depend on. This is more than an inconvenience—it’s downtime that costs you time and money. Get back on the road with confidence with this direct-fit, professionally programmed 89017749 PCM, the brain of your vehicle’s engine management system, restored to perfect working order.
Common Symptoms & Your Solution
If you’re experiencing any of the issues below, this module is the definitive solution. A faulty PCM can trigger a wide range of diagnostic trouble codes (DTCs), including P0601, P0602, P0606, or communication errors with other modules. Don’t let a bad computer keep your vehicle sidelined.
- ✔ VIN-Matched Programming: This module isn’t just a part; it’s a complete solution. We flash it with the latest GM software updates using your vehicle’s specific VIN. This ensures perfect compatibility and eliminates the need for an expensive trip to the dealership for programming.
- ✔ Plug-and-Drive Installation: Because it arrives pre-programmed, installation is straightforward. In most cases, once you perform a simple security relearn procedure, your vehicle will be ready to go, restoring the performance and reliability you expect.
- ✔ Fixes Common Issues: This is the fix for perplexing problems like harsh shifting, poor fuel economy, engine stalling, and false sensor codes that other repairs can’t seem to solve. Our Programmed 89017749 PCM corrects the root cause.
- ✔ Broad GM Compatibility: This versatile module is the correct component for a wide range of hardworking GM vehicles, including the Silverado, Sierra, Savana, and Express, particularly those equipped with the powerful 8.1L V8 engine.
- ✔ Guaranteed Peace of Mind: This unit is backed by our one-year replacement warranty. Drive with the assurance that your purchase is protected.
Expert Insight: The Critical Role of VIN-Specific Flashing
As a veteran technician, I’ve seen countless vehicle owners waste money on used control modules from a salvage yard. They might look identical, but a PCM contains specific software and calibrations for the original vehicle’s engine, transmission, and options. Installing a mismatched module can lead to a no-start condition, transmission damage, or a cascade of new error codes. Our VIN-flashing service isn’t just a convenience; it’s a critical step that ensures the Programmed 89017749 PCM communicates flawlessly with your vehicle, just as the original factory unit did. We load the correct, updated software so it works right the first time.
Frequently Asked Questions
How do I provide my vehicle’s VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is specific to your vehicle.
Will I need to do anything after installing the PCM?
In most GM vehicles of this era, you will need to perform a security relearn procedure (often called a CASE relearn or anti-theft relearn). This process syncs the new PCM with your vehicle’s keys and anti-theft system. It’s a simple procedure that typically takes 10-30 minutes and does not require special tools.
Is this a difficult part to install myself?
For someone with basic mechanical skills, this is a very manageable job. The PCM is typically located in the engine bay (often under or near the battery) and is held in by a few bolts. The most important step is to disconnect the vehicle’s battery before you begin. After swapping the module, you’ll perform the security relearn.
My old module has a different part number. Will this work?
Yes. This Programmed 89017749 PCM is the correct service replacement for several original part numbers, including 12589462 and 12602801. As long as your vehicle’s year, make, and model are on our compatibility list, this module will function correctly once programmed to your VIN.
What does the one-year replacement warranty cover?
This unit is backed by our one-year replacement warranty. This covers any defects in the module itself. If the unit fails within one year of the purchase date, we will provide a replacement part.