Is your Chevrolet Express, GMC Savana, or Silverado running rough, stalling, or failing to start? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle’s engine and transmission. A faulty PCM can cause a cascade of frustrating issues, from poor fuel economy to a persistent check engine light. This replacement PCM is the definitive solution to restore your vehicle’s performance, reliability, and efficiency.
This module is not just a replacement part; it’s a complete, ready-to-install solution. We professionally program the unit to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This critical step ensures perfect compatibility and communication with all other modules in your truck or van. It arrives loaded with the latest factory software updates from GM, often correcting underlying drivability issues you may not have even been aware of. This means no expensive trips to the dealership for programming—just a straightforward installation process to get you back on the road.
From the Diagnostic Bay
We had a 2001 Express 2500 work van come in that was a real head-scratcher. The owner had replaced the throttle position sensor, the mass airflow sensor, and even the fuel pump chasing an intermittent stalling problem and harsh 1-2 gear shifts. The van would run fine for a day, then act up again. After hooking up our diagnostic scanner and monitoring live data, we noticed the PCM was sending erratic signals to the transmission solenoids right before a harsh shift. The internal logic of the original module was failing under load. We installed one of our pre-programmed PCMs, and the van immediately ran and shifted like new. It’s a perfect example of how a failing computer can mimic the symptoms of multiple other parts, leading to wasted time and money.
Is Your GM Truck or Van Showing These Symptoms?
A failing PCM can manifest in numerous ways. If you’re experiencing any of the following, a faulty module could be the culprit:
- ✔ Check Engine Light is on with various communication or sensor-related codes.
- ✔ The engine cranks but refuses to start.
- ✔ Unexplained stalling or rough idling, especially when warm.
- ✔ Noticeable decrease in fuel mileage.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass an emissions test due to module-related errors.
- ✔ Intermittent electrical issues that seem to have no other cause.
The Plug-and-Play Solution for Your Savana 2500 PCM
Replacing the brain of your vehicle sounds intimidating, but we make it simple. By programming the module to your VIN, we handle the most complex part of the job. When you receive your replacement Savana 2500 PCM, the installation is typically straightforward. In most cases, it involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it from its bracket, and installing the new one in its place. Once connected and the battery is re-engaged, your vehicle will recognize the new module as its own, complete with the correct software and security information. No further procedures are required.
This module is a direct replacement for a wide range of GM vehicles from 1998 to 2002, including the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, Astro, Safari, and more. It is compatible with multiple original equipment part numbers, including 16263494, 16265035, and 8162634940, ensuring broad application and a perfect fit for the vehicles listed in the compatibility chart.
Frequently Asked Questions
Do I need to get this PCM programmed by a dealer?
No. This is the biggest benefit of our service. We program the module to your vehicle’s VIN before we ship it to you. It arrives ready for installation with no additional programming required.
Where do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information.
What tools are needed for installation?
Installation is typically simple, requiring only basic hand tools like a socket set to disconnect the battery and unbolt the module from its mounting bracket. No special electronic tools are needed.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. It’s crucial to properly diagnose the problem first, as the light can be triggered by many other components.
Is this compatible with my 2000 Chevy Silverado 1500?
Yes, this module fits a wide variety of GM trucks and vans. Please review the detailed fitment list on this page to confirm it is the correct part for your specific year, make, model, and engine.