Restore Peak Performance to Your GM Truck or Van
Is your Chevrolet Express, GMC Savana, or Silverado suffering from erratic behavior, poor fuel economy, or a persistent Check Engine Light? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle. Don’t let a faulty module keep you off the road. This direct-replacement PCM is the reliable, straightforward solution to restore your vehicle’s engine and transmission performance to factory specifications.
This isn’t just a generic part off the shelf. We take the guesswork out of the repair by pre-programming this module specifically for your vehicle. After your purchase, simply provide us with your Vehicle Identification Number (VIN), and our technicians will flash the unit with the latest, most stable software updates directly from General Motors. This ensures seamless communication with your vehicle’s existing systems, optimal performance, and a hassle-free installation process.
From the Diagnostic Bay
We had a 2001 GMC Sierra in the shop that was driving the owner crazy. It had a rough idle and would randomly stall at stoplights. He had already replaced the spark plugs, wires, and even the throttle position sensor, but the problem persisted. After hooking up our professional scan tool, we noticed erratic data coming from the PCM. The internal processors were failing, causing incorrect signals to be sent to the engine. We installed one of our VIN-programmed modules, performed the quick security relearn, and the truck ran like it just rolled off the assembly line. It’s a reminder that sometimes the ‘brain’ is the source of the problem, not just the sensors.
Common Symptoms of a Failing Powertrain Control Module
- ✔ Persistent Check Engine Light (CEL) on your dashboard.
- ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Vehicle entering ‘limp mode’ with reduced power.
- ✔ Failure to pass emissions testing.
- ✔ Complete no-start condition where the engine cranks but won’t fire up.
Why Choose Our Pre-Programmed GM PCM 16263494?
Getting your vehicle back to optimal condition is our priority. This module is a direct replacement for multiple OEM part numbers, including 16263494, 16265035, and 8162634940, covering a wide range of popular GM trucks and vans from 1998 to 2002. By programming the unit to your VIN, we eliminate the need for expensive trips to the dealership for software flashing. This saves you both time and money. The installation is typically straightforward, and in most cases, the only additional step is a simple security relearn procedure that you can often do yourself right in your driveway.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. We handle all the programming for you before we ship the part. Simply provide us with your vehicle’s VIN after you place your order, and it will arrive ready to be installed.
What is a VIN and why do you need it?
The VIN (Vehicle Identification Number) is a unique 17-digit code for your specific vehicle. It allows us to load the exact factory software and calibrations for your truck or van’s engine, transmission, and options, ensuring perfect compatibility.
Will I need to perform any other steps after installation?
In many cases, you may need to perform a security relearn procedure (also known as a CASE learn or Passlock relearn). This syncs the new PCM with your vehicle’s anti-theft system. This procedure is simple and can usually be done without any special tools. We can provide instructions upon request.
How can I be sure this part will fit my vehicle?
Please review the detailed fitment list on this page. This module, identified by part number 16263494, fits a wide variety of GM models like the Express, Savana, Silverado, Sierra, S10, Blazer, and Tahoe from the late 90s and early 2000s. Matching your original part number is the best way to guarantee compatibility.
Is this a brand new part?
This is a high-quality, tested, and verified functional component. Each module undergoes rigorous inspection and testing to ensure it meets or exceeds OEM performance standards before being programmed and shipped.