Is Your Work Van Unreliable? Get Back on the Road Fast.
If your 2005-2007 GMC Savana 2500 is suddenly plagued with issues like a no-start condition, erratic idling, poor fuel economy, or a persistent Check Engine Light with communication error codes, a failing Powertrain Control Module (PCM) is often the culprit. As the brain of your vehicle’s engine and transmission, its proper function is critical. When it fails, it can leave you stranded and unable to work. This isn’t just an inconvenience; it’s a direct hit to your productivity and income.
The Simple, Dealer-Free Solution
Forget about towing your van to a dealership and paying hundreds for diagnostics and programming. We provide a direct, reliable solution. This Powertrain Control Module is professionally flashed with the latest GM-certified software updates, specifically programmed to your vehicle’s unique Vehicle Identification Number (VIN). It arrives at your door ready for a straightforward installation, restoring your van’s performance and dependability.
- ✔ VIN Programmed & Ready to Install: We handle all the programming before we ship. No expensive dealer tools or visits are required.
- ✔ Latest GM Software: Your module comes loaded with the newest calibrations to correct factory bugs and improve engine efficiency and transmission shifting.
- ✔ Direct-Fit Replacement: Guaranteed to be a perfect replacement for part numbers 12589462, 12602801, and 89017749.
- ✔ Solves Common Failures: Effectively resolves issues like harsh shifting, no-start conditions, false sensor codes, and general poor performance.
Expert Pro Tip From a 20-Year Technician
Before installing your new PCM, take a moment to inspect the harness connectors for any signs of corrosion, moisture, or bent pins. On these Savana and Express vans, the PCM is exposed to the elements in the engine bay. A poor connection is one of the most common causes of repeat module failure. Use a quality electronics cleaner and a small brush to ensure the terminals are pristine for a perfect, lasting connection.
Easy Installation for the DIYer or Professional
You can get your Savana 2500 running right again in under an hour. While the exact location can vary slightly, the process is generally the same.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery before beginning work.
- Locate the PCM: On most 2005-2007 Savana and Express vans, the PCM is located in the rear of the engine compartment on the driver’s side (LH).
- Disconnect Wiring: Carefully unlatch and remove the electrical harness connectors from the old module. Do not force them.
- Swap the Modules: Unbolt the old PCM from its mounting bracket and set it aside. Secure the new module in its place.
- Reconnect and Finalize: Firmly plug the harness connectors into the new PCM until they click into place. Reconnect the negative battery terminal. In most cases, the vehicle will start right up. Some vehicles may require a simple security relearn procedure (turning the key to ‘On’ for 10 minutes), which requires no special tools.
Why Our Pre-Programmed 2005-2007 Savana 2500 PCM is the Right Choice
In my 20+ years in the shop, I’ve seen hundreds of GM trucks and vans with PCM-related headaches. Just last week, a contractor’s ’06 Savana 2500 came in on a tow truck. It would crank but not start, and he had already replaced the fuel pump to no avail. A quick scan showed no communication with the PCM. We traced it to an internal failure in the original unit. A pre-programmed module like this one had him back on the job site the next morning, saving him from another day of lost work. This isn’t just a part; it’s a reliable fix that gets you moving again.
Broad Compatibility Across the GM Lineup
While perfect for your Savana, this versatile module also serves as the electronic control unit for a wide range of GM vehicles, including the Chevrolet Silverado, GMC Sierra (1500, 2500, 3500), Express, Suburban, Avalanche, and more. Please use the compatibility chart to verify the exact fit for your specific year, model, and engine.