Get Your Truck Back on the Road, Fast.
Is your Silverado, Sierra, or Express van fighting you every step of the way? Stalling at intersections, shifting erratically, or refusing to start altogether? A failing Powertrain Control Module (PCM) can be the hidden culprit behind these frustrating and costly issues. Stop throwing parts at the problem. This fully programmed PCM is the definitive solution to restore your vehicle’s performance, reliability, and power. It arrives flashed with the latest GM software updates and programmed to your specific Vehicle Identification Number (VIN), ensuring a seamless installation process.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause. This module is the reliable fix for:
- Complete no-start condition or intermittent starting
- Harsh or unpredictable transmission shifting
- Poor fuel economy and engine performance
- Check Engine Light with communication error codes (like P0601, P0605)
- Apparent failure of multiple unrelated sensors at once
- Stalling for no apparent reason while driving or at idle
Replacing your old unit with our professionally programmed 1999-2000 Silverado 1500 PCM resolves these issues at their source, giving you back a vehicle you can depend on every single day.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Truck: We flash the module with your vehicle’s exact VIN, ensuring it works perfectly with your existing keys and components right out of the box.
- ✔ Latest GM Software Updates: Your computer comes loaded with the newest factory calibrations to correct known bugs and improve transmission shifting, idle stability, and overall efficiency.
- ✔ Plug & Play Installation: Simply disconnect the battery, swap the module, and perform the simple security relearn procedure. No expensive trip to the dealer is required.
- ✔ Restored Engine Performance: Get back the smooth acceleration, crisp shifting, and consistent power your GM truck or van was built to deliver.
- ✔ Cost-Effective Solution: Avoid the high costs and programming fees of a dealership by getting a ready-to-install unit shipped directly to you or your mechanic.
Expert Diagnostic Tip
From over 20 years on the shop floor, I’ve seen countless technicians chase their tails replacing perfectly good transmissions or fuel pumps when the real issue was a failing PCM. The computer controls everything. When it sends bad signals, the transmission can shift erratically and the fuel pump may not get the command to run. Before you approve another expensive repair, consider the brain of the operation. This 1999-2000 Silverado 1500 PCM is often the one part that fixes everything at once.
Frequently Asked Questions
How do I provide my VIN number?
After you complete your purchase, you will receive an email prompting you for your vehicle’s 17-digit VIN. You can also add it to the ‘notes’ section during checkout. We cannot ship your part until we have the VIN to program it correctly.
Will I need to do anything after I install it?
Yes. While the module is programmed to your VIN, you will need to perform a simple security relearn procedure, also known as a VATS or Passlock relearn. This process takes about 30 minutes and involves turning the key on and off in a specific sequence. We include easy-to-follow instructions with your order.
Is this a brand new part?
This is a professionally prepared and tested original equipment (OE) component. Each unit undergoes a rigorous inspection and programming process to ensure it meets or exceeds factory specifications for performance and longevity.
Does this part have other compatible part numbers?
Yes, this module is a direct replacement for several part numbers, including 16263494, 16265035, and 8162634940. As long as your vehicle is on the compatibility list, this unit will work perfectly.
What if my problem isn’t fixed?
Our goal is to solve your problem. A faulty PCM is the cause of these symptoms in the vast majority of cases. However, if the issue persists, it may indicate another underlying problem with your vehicle’s wiring or sensors. Our experienced support team is available to help you troubleshoot further.