Is Your GM Van or Truck Experiencing Engine Problems?
If your 2005-2007 GMC Savana 2500, Chevrolet Express, or other compatible GM truck is suffering from erratic behavior like stalling, rough idling, poor fuel economy, or a persistent Check Engine Light, a failing Powertrain Control Module (PCM) is a likely culprit. The PCM is the central computer of your vehicle, managing everything from fuel injection and ignition timing to transmission shifting. When it fails, it can cause a cascade of frustrating and performance-robbing issues. Don’t let a faulty computer keep your workhorse off the road. This direct-fit PCM, part number 89017749, is the reliable solution to restore your vehicle’s performance and dependability.
Expert Pro Tip
Expert Pro Tip
Before installing a new PCM, always disconnect the battery. It’s also crucial to inspect the main engine wiring harness for any signs of damage, corrosion, or shorted wires, especially near the PCM connectors. A wiring issue can damage a new module instantly. Also, verify your battery and alternator are in good health, as voltage irregularities can cause PCM faults.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various trouble codes (DTCs).
- ✔ Engine misfires, runs rough, or stalls unexpectedly.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Intermittent issues that are difficult to diagnose.
The Plug-and-Play Solution: A Pre-Programmed 2005-2007 Savana 2500 PCM
Replacing a PCM isn’t just about swapping hardware. The module must be programmed specifically to your vehicle’s Vehicle Identification Number (VIN) and equipped options. Our service eliminates the need for an expensive trip to the dealership. We handle the programming for you before the part ever leaves our facility. Simply provide us with your VIN during checkout, and you’ll receive a PCM that is loaded with the latest GM-certified software updates for your specific vehicle. This ensures optimal performance, fuel efficiency, and emissions compliance right out of the box.
This module is a direct replacement for multiple part numbers, including 12589462, 12602801, and 89017749, and fits a wide array of GM trucks and vans. Whether you’re driving a Savana, Express, Silverado, Sierra, or Suburban, this module is engineered to restore the precise engine management your vehicle had when it was new. The installation is straightforward for a knowledgeable DIYer or any professional technician, getting you back to work or on the road with minimal downtime.
Frequently Asked Questions
Expert Pro Tip
Before installing a new PCM, always disconnect the battery. It’s also crucial to inspect the main engine wiring harness for any signs of damage, corrosion, or shorted wires, especially near the PCM connectors. A wiring issue can damage a new module instantly. Also, verify your battery and alternator are in good health, as voltage irregularities can cause PCM faults.