Restore Your Vehicle’s Brain and Get Back on the Road
Is your Chevrolet Express, GMC Savana, or another GM truck from this era suffering from baffling electrical gremlins? Issues like a persistent check engine light, erratic transmission shifting, poor fuel mileage, or even a no-start condition can often be traced back to a single, critical component: the Powertrain Control Module (PCM). As the central computer for your engine and transmission, a failing PCM can disrupt your vehicle’s entire operation. This replacement Powertrain Control Module is the definitive solution to restore your vehicle’s performance and reliability.
This isn’t just a generic part off the shelf. We provide a crucial service by programming this module specifically for your vehicle using your VIN. This ensures that it has the latest GM factory software updates, correcting common drivability issues and ensuring perfect compatibility with your vehicle’s systems. This VIN-specific programming makes installation straightforward, eliminating the need for expensive trips to the dealership for flashing.
From the Diagnostic Bay
We recently worked on a 2001 Chevy Express 3500 work van that came in on a tow truck. The owner said it would run fine for about 20 minutes, then suddenly stall and refuse to restart until it cooled down completely. The scanner would lose communication with the PCM during the stall. After verifying all power and ground connections to the module were solid, we knew the culprit. The original PCM’s internal processor was failing under heat. We installed one of these VIN-programmed modules, performed the quick security relearn, and the van fired right up. It ran for over an hour in the bay without a single hiccup. This simple replacement saved the owner from losing more work days and got his reliable van back in service.
Is Your GM Truck or Van Showing These Symptoms?
A faulty PCM can manifest in numerous ways. If you’re experiencing any of the following, it’s highly likely your module is the root cause:
- ✔ Persistent Check Engine Light (CEL) that won’t go away.
- ✔ Error codes related to sensors, emissions, or internal module failure.
- ✔ Unexplained drops in fuel economy.
- ✔ Harsh, delayed, or incorrect gear shifting.
- ✔ Engine stumbling, misfiring, or running rough.
- ✔ Intermittent or complete no-start conditions.
- ✔ Failure to pass state emissions testing.
The Importance of a Properly Programmed Savana 2500 Powertrain Module
The PCM is more than just a box of wires; it’s a sophisticated computer that manages dozens of critical functions in real-time. It controls the fuel injectors, ignition timing, transmission shift points, and emissions components like the EGR valve and oxygen sensors. When you order from us, we flash the module with your vehicle’s unique VIN. This process loads the correct operating system and calibration files for your specific engine, transmission, and emissions package. This step is critical for proper function and is included with your purchase, ensuring a plug-and-play repair that restores original factory performance.
This module is a direct replacement for multiple original equipment part numbers, including 16263494, 16265035, and 8162634940. It fits a wide range of popular GM vehicles, including the Chevrolet Silverado, GMC Sierra, S10/Sonoma, Blazer/Jimmy, Tahoe/Yukon, and many others as detailed in the fitment list. Please verify your part number or contact us to ensure compatibility.
Frequently Asked Questions
Why do you need my vehicle’s VIN?
Your Vehicle Identification Number (VIN) allows us to program the module with the exact software and calibration file that GM specifies for your truck or van’s engine, transmission, and options. This ensures perfect compatibility and optimal performance without needing a trip to the dealer.
Is any additional programming required after I install it?
In most cases, no further programming is needed. However, you will need to perform a security relearn procedure (often called a CASE learn or Passlock relearn) which pairs the new module to your vehicle’s anti-theft system. This is a simple procedure that typically takes 10-30 minutes and can be done without special tools. Instructions are readily available online for your specific model.
Where is the PCM located on my vehicle?
The location varies by model. On many GM trucks like the Silverado and Sierra, it’s on the driver’s side of the engine compartment, near the battery or firewall. On vans like the Express and Savana, it’s often located in the LH rear of the engine compartment. For S10/Blazer models, it’s typically on the RH side. Always disconnect the battery before removal and installation.
Will this fix my specific problem or check engine light?
While this module is the solution for a wide range of PCM-related issues, it’s essential to have your vehicle properly diagnosed. This part will correct problems caused by a faulty module, but it will not fix issues caused by bad sensors, wiring, or other mechanical components. If your mechanic has diagnosed a failed PCM, this is the correct part for the job.
Is this module compatible with part number 16263494?
Yes, this module is a direct replacement and is fully compatible with several original part numbers, including 16263494, 16265035, and others listed in the description. It serves as a consolidated replacement for these older units.