Restore Peak Performance to Your GM Truck or Van
Is your Chevrolet Express, GMC Savana, S10, or other GM vehicle suffering from perplexing issues like a persistent check engine light, rough idling, stalling, or erratic transmission shifting? These are common indicators of a failing Powertrain Control Module (PCM), the central computer responsible for managing your engine and transmission’s performance. A faulty PCM can disrupt fuel delivery, ignition timing, and shift points, leading to poor fuel economy, failed emissions tests, and an unreliable driving experience. This replacement module is the definitive solution to restore your vehicle’s factory operation and dependability.
This isn’t just a generic part off the shelf. We provide a fully programmed powertrain control module specific to your vehicle. Upon purchase, you will provide us with your vehicle’s VIN. Our technicians will then flash the module with the latest GM-authorized software updates, ensuring it is perfectly matched to your vehicle’s engine, transmission, and factory options. This critical programming step eliminates compatibility guesswork and ensures a seamless integration, restoring the precise control your vehicle needs to run smoothly and efficiently.
From the Diagnostic Bay
We had a 2001 GMC Savana 2500 in the shop that was driving its owner crazy. It had a random misfire code that would come and go, and the transmission would sometimes shift hard into second gear. The owner had already replaced the spark plugs, wires, and even the throttle position sensor, but the problem persisted. After hooking up our diagnostic scanner and monitoring live data, we noticed the injector pulse width was fluctuating erratically on one cylinder, but only when the engine was warm. All wiring checked out. The culprit? A failing injector driver inside the original PCM. We installed a correctly programmed GM PCM 16263494, and the van ran like new. It’s a classic case where chasing sensors costs more time and money than addressing the root cause in the vehicle’s central computer.
Is Your Vehicle Showing Signs of PCM Failure?
- ✔ Persistent Check Engine Light (CEL) with various engine codes.
- ✔ Engine stalling or cutting out unexpectedly.
- ✔ Rough or unstable idling.
- ✔ Harsh or delayed automatic transmission shifting.
- ✔ A noticeable decrease in fuel efficiency.
- ✔ The vehicle fails to start, even with a good battery and starter.
- ✔ Failure to pass state emissions testing.
The Importance of a VIN-Programmed GM PCM 16263494
Modern vehicles are complex systems. The PCM must communicate flawlessly with dozens of other sensors and modules. Using a non-programmed or incorrectly programmed module can lead to a no-start condition, incorrect engine operation, or damage to other components. Our VIN-matching service guarantees that the GM PCM 16263494 you receive is loaded with the correct software for your specific application, taking into account critical factors like engine size (4.3L, 5.0L, 5.7L), transmission type, and emissions equipment. This ensures a proper, reliable repair and gets you back on the road with confidence.
This module is a direct replacement for multiple part numbers, including 16263494, 16265035, and 8162634940. It fits a wide array of popular GM models from the late 1990s and early 2000s, such as the Chevrolet Silverado, GMC Sierra, Tahoe, Yukon, Blazer, and many more. Please review the detailed fitment list to confirm compatibility with your exact year, make, and model.
Frequently Asked Questions
What is a PCM and what does it do?
The Powertrain Control Module (PCM) is your vehicle’s main computer. It controls all aspects of engine and transmission function, including fuel injection, spark timing, emissions systems, and automatic transmission shift points, to ensure optimal performance, fuel economy, and low emissions.
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the PCM with the exact software and calibrations for your specific vehicle. This includes engine size, transmission type, gear ratios, and any other factory-installed options. This step is essential for the module to function correctly.
Is this a simple plug-and-play installation?
Once you receive the VIN-programmed module, the physical installation is typically straightforward. However, many GM vehicles of this era require a security relearn procedure (also known as a CASE relearn or Passlock relearn) to sync the new PCM with your vehicle’s anti-theft system. This procedure is often simple and can be done without special tools. Instructions can be readily found online for your specific model.
How do I know for sure that my PCM is the problem?
Diagnosing a faulty PCM requires ruling out other potential causes first, such as bad sensors, wiring issues, or fuel delivery problems. If other components have been tested and confirmed to be working correctly, and symptoms like multiple unrelated error codes or intermittent electrical issues persist, the PCM is a very likely culprit.
Will this module fix my check engine light?
If the check engine light is on due to an internal failure of the old PCM, then yes, this new programmed module will resolve the issue. However, if the light is caused by a separate faulty sensor or component on the vehicle, that part will still need to be repaired or replaced.