Restore Peak Performance to Your GM Truck or Van
Is your Chevrolet, GMC, or Isuzu truck suffering from frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or even a no-start condition? The Powertrain Control Module (PCM), often called the vehicle’s main computer, is the culprit in many of these cases. It governs critical engine and transmission functions, and when it fails, the symptoms can be widespread and difficult to diagnose. This direct-fit replacement PCM, part number 16263494, is the definitive solution to get your vehicle running reliably again.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling, stumbling, or misfiring
- ✔ Harsh, delayed, or incorrect transmission shifting
- ✔ A noticeable decrease in fuel efficiency
- ✔ The vehicle will crank but fails to start
- ✔ Communication errors when using a diagnostic scan tool
- ✔ Failure to pass state emissions testing
The Simple, Reliable Solution: A Programmed Chevy 3500 PCM
Don’t let a faulty computer keep your truck off the road. The biggest challenge with replacing a modern vehicle’s computer is the need for vehicle-specific programming. This module completely eliminates that hurdle. When you order from us, we use the Vehicle Identification Number (VIN) you provide to flash the module with the latest, most up-to-date software calibration directly from General Motors. This ensures that the PCM is perfectly matched to your vehicle’s specific engine, transmission, and options. Your new Chevy 3500 PCM arrives ready for installation, saving you the time, expense, and hassle of a dealership visit.
This module is a direct replacement for multiple part numbers, including 16263494, 16265035, and 8162634940, and fits an extensive range of popular GM models from the late 1990s and early 2000s. Please verify your vehicle in our detailed fitment list below to ensure compatibility.
Frequently Asked Questions
Do I need to do any programming myself?
No. This Powertrain Control Module arrives at your door fully programmed to your vehicle’s specific VIN. The complex part is done for you.
What is a security relearn procedure?
For many GM vehicles of this era, a simple security relearn is required to sync the new PCM with your vehicle’s anti-theft system. This is typically a straightforward key-on/key-off procedure that takes about 30 minutes to complete. We provide clear instructions to guide you through it.
How do I provide my VIN?
After you place your order, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information.
Is this part truly plug-and-play?
Yes, after the simple security relearn procedure (if required for your vehicle), the module is plug-and-play. Just disconnect the negative battery terminal, swap the modules, reconnect the battery, and perform the relearn.
Will this fix my vehicle’s specific problem?
This PCM will correct any issues directly caused by a faulty original computer. While it solves a wide range of common problems, it’s essential to ensure your vehicle has been properly diagnosed. This part will not fix issues caused by faulty sensors, wiring, or mechanical components.