Restore Peak Performance to Your GM Truck or Van
Is your dependable Chevrolet, GMC, or Isuzu suddenly running rough, shifting erratically, or displaying a persistent Check Engine light? A failing Powertrain Control Module (PCM) can be the hidden culprit, causing frustrating driveability issues and sidelining your vehicle when you need it most. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We provide a high-quality PCM, professionally programmed with the latest GM software updates specifically for your vehicle’s VIN. This eliminates the need for an expensive and time-consuming trip to the dealership, getting you back on the road or the job site with confidence.
Common Symptoms of a Failing GM PCM & Your Solution
If you’re experiencing any of the following issues, a faulty engine computer is a likely cause. This module is the definitive solution for problems such as:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0605
- Rough or unstable idling
- Poor fuel economy
- Harsh or unpredictable transmission shifting
- Engine stalling or intermittent no-start conditions
- Failure to pass emissions testing
By installing our pre-programmed 1999-2000 Silverado 1500 PCM, you are directly addressing the brain of your vehicle’s powertrain, restoring the precise calculations needed for optimal engine performance and transmission function.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for a hassle-free, plug-and-play installation. No expensive trips to the dealership for flashing are required.
- ✔ Loaded with Latest GM Updates: We ensure your module has the most current software, which can solve factory bugs and improve overall performance and efficiency.
- ✔ Direct-Fit Replacement: Guaranteed to be fully compatible with a wide range of GM trucks and vans, including part numbers 16263494 and 16265035.
- ✔ Restores Original Performance: Eliminates frustrating issues caused by a faulty computer, bringing back the smooth and reliable operation you depend on.
- ✔ Cost-Effective Solution: Get the correct part, programmed and ready to go, for a fraction of the cost of a new module and dealer programming.
An Expert’s Take on GM’s “Black Box” PCM
“Back in the late 90s and early 2000s, these GM ‘black box’ PCMs were a big leap forward. They control everything—fuel injectors, spark timing, transmission shift points, and even the cooling fans. The problem is, when they fail, they can create a cascade of baffling symptoms. I’ve seen mechanics chase phantom sensor issues for days, only to find the PCM was the root cause. The key is the programming. A module without the correct VIN-specific software is just a metal box. Our programming service ensures that the new PCM speaks the exact language of your truck’s specific configuration, from its engine size to its gear ratio. That’s the difference between a quick fix and a permanent solution.”
Don’t let a faulty computer dictate your vehicle’s reliability. This is your opportunity to solve the problem correctly the first time. By purchasing this module, you’re not just buying a part; you’re investing in peace of mind and the restored dependability of your truck. We make the process simple: after your purchase, provide us with your VIN, and we’ll handle the complex programming. Your new 1999-2000 Silverado 1500 PCM will arrive at your door, ready for a straightforward installation.
Frequently Asked Questions
How does the VIN programming process work?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN (Vehicle Identification Number). Our technicians use this number to access the latest official GM software for your specific vehicle and flash it onto the module before shipping. This ensures it works perfectly with your truck’s engine, transmission, and options.
Is this module difficult to install?
For someone with basic mechanical skills, installation is straightforward. It typically involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then installing the new one in the reverse order. It’s designed to be a direct replacement.
Do I need to perform any other procedures after installation?
In many cases, no further action is needed. However, some vehicles may require a security relearn procedure (often called a CASE relearn or anti-theft relearn), which can typically be done without special tools. Instructions for this are widely available online or in service manuals.
Will this fix my Check Engine light?
If the Check Engine light is on due to an internal fault in the old PCM (like a P0601 code), this module will solve the problem. However, if the light is on for another reason, such as a faulty sensor, that issue will still need to be addressed separately.
What if my original part number isn’t on your list?
The part numbers listed (like 16263494) are the most common, but GM often has several interchangeable numbers. As long as your vehicle’s year, make, and model are on the compatibility list, our VIN programming will ensure the module functions correctly, even if your original number is slightly different.
Is this a new or used part?
This is a high-quality, inspected, and guaranteed functional component that has been expertly programmed for your vehicle. It is a reliable and cost-effective alternative to a brand new unit from a dealer. We ensure every unit passes rigorous testing before programming and shipment.