Restore Peak Performance to Your GM Truck or SUV
Is your Silverado, Sierra, Tahoe, or other GM vehicle suffering from erratic engine behavior, poor fuel economy, or a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. A faulty PCM can cause a cascade of frustrating issues, from rough idling and stalling to harsh transmission shifts and even a no-start condition. Don’t let a failing computer keep your reliable truck off the road. This direct-fit replacement PCM is the definitive solution to restore your vehicle’s factory performance, drivability, and efficiency.
This module is meticulously programmed with the latest official GM software updates specifically for your vehicle. We use the Vehicle Identification Number (VIN) you provide to ensure a perfect match, eliminating guesswork and compatibility problems. This VIN-specific flashing process ensures that all engine, transmission, and emissions parameters are set to your vehicle’s exact specifications, just as it came from the factory. It’s a plug-and-play solution designed to get you back on the road quickly and confidently.
Common Symptoms of a Failing GM PCM 89017734
If you’re experiencing any of the following issues, your Powertrain Control Module could be the culprit. A failing PCM can manifest in various ways, often becoming more severe over time. Replacing it can resolve these problems and prevent further damage to related components like the transmission or catalytic converter.
- ✔ Check Engine Light is illuminated with various trouble codes (DTCs).
- ✔ Engine stalling, stumbling, or misfiring unexpectedly.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Harsh, erratic, or delayed automatic transmission shifting.
- ✔ Vehicle fails to start, even with a good battery and starter.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Failure to pass state emissions testing.
Plug-and-Play Solution with the Latest Software
Forget expensive trips to the dealership for programming and diagnostics. We handle the complex part for you. By providing your VIN during checkout, you receive a module that is ready for installation right out of the box. This replacement GM PCM 89017734 is compatible with a wide range of popular GM trucks and SUVs from 2003 to 2007, including the Chevrolet Avalanche, Silverado, Suburban, Tahoe; the GMC Sierra, Yukon; the Cadillac Escalade; and the Hummer H2. It directly replaces multiple service numbers, including 89017750, 12582605, 12589463, and 12602802, ensuring broad compatibility. After installation, you may need to perform a simple security relearn procedure (often called a CASE relearn), which can typically be done without special tools and instructions are readily available online.
Frequently Asked Questions
What is the function of a PCM?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of the engine and transmission, including fuel injection, ignition timing, emissions systems, and shift points, to ensure optimal performance, fuel economy, and low emissions.
Is this part difficult to install?
The physical installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. The location is usually under the hood on the driver’s side, near the battery or airbox.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. This allows us to program the module with the correct software for your specific vehicle configuration before we ship it.
Will I need to do anything after installing this PCM?
In most cases, you will need to perform a security relearn procedure, also known as a CASE (Crankshaft Angle Sensor Error) relearn. This synchronizes the new PCM with your vehicle’s anti-theft system and crankshaft position sensor. This procedure can often be done without special tools.
Does this part replace other service numbers?
Yes, this module is a direct replacement for several service numbers, including 89017750, 12582605, 12589463, 12602802, and 28042802, ensuring it is the correct part for a wide range of applications.