Is Your Truck Running Rough, Stalling, or Refusing to Start?
Your GMC or Chevy truck is the backbone of your work, your projects, and your daily life. When it’s not running right, everything stops. If you’re dealing with a persistent check engine light, unpredictable stalling, poor fuel economy, or a no-start condition, the problem often points directly to a failing Powertrain Control Module (PCM). Instead of facing a costly and time-consuming trip to the dealership, get the reliable, straightforward solution that gets you back on the road fast. This engine computer is the dependable heart your vehicle needs to run strong again.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of frustrating issues. You might be experiencing one or more of the following:
- Check Engine Light (CEL) with communication-related codes (e.g., P0601, P0605, P0606).
- Engine Stalling or Misfiring for no apparent reason.
- Poor Performance and a noticeable drop in fuel efficiency.
- Harsh or Incorrect Shifting from the transmission.
- Complete No-Start Condition where the engine cranks but won’t fire up.
This pre-programmed Powertrain Control Module is the definitive fix for these problems. We eliminate the guesswork by providing a unit that is a direct replacement for your original, specifically flashed for your exact vehicle. This isn’t just a part; it’s a complete solution designed to restore the performance and reliability you depend on. When you need a guaranteed fix for your 1999 GMC 1500 PCM 16263494, this is the answer.
Features & Benefits
- ✔ Plug & Drive Installation: Arrives fully programmed to your vehicle’s specific VIN. No expensive dealer tools or additional flashing required.
- ✔ Latest GM Software Updates: We flash your module with the most current software from General Motors, correcting original factory flaws and improving overall performance and efficiency.
- ✔ Guaranteed Compatibility: A direct-fit replacement for multiple OEM part numbers, including 16263494, 16265035, and 8162634940, ensuring a perfect match for your truck or van.
- ✔ Rigorously Inspected: Every unit undergoes a comprehensive inspection and testing process on a live vehicle simulator to ensure flawless performance and long-term durability.
- ✔ No Core Charge: Keep your old part. We don’t require a core return, saving you time, hassle, and return shipping costs.
An Expert’s Take: The Dealership Alternative
“For years, replacing a PCM was a job reserved for the dealership. You’d pay for the part, the labor, and the expensive programming fee. It was a black box most mechanics and DIYers couldn’t touch. Our goal is to change that. By programming the 1999 GMC 1500 PCM 16263494 before it ever leaves our facility, we hand you a solution that’s as simple as swapping a battery. We’re putting the power back in your hands, saving you hundreds of dollars and days of downtime. This is the way vehicle electronics repair should be: simple, affordable, and effective.”
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. This module is a complete plug-and-drive solution. We handle all the programming using your vehicle’s VIN before we ship it. Your only task is the physical installation.
What information do you need from me?
After you place your order, we will need the 17-digit Vehicle Identification Number (VIN) from your truck or van. This allows us to load the exact, correct software for your vehicle’s specific configuration.
Will I need to perform a security relearn procedure?
Yes, on most GM vehicles of this era, you will need to perform a simple security relearn, also known as the Passlock or VATS relearn. This procedure takes about 30 minutes and requires only your key. We include easy-to-follow instructions to guide you through it.
How can I be sure this part will fit my vehicle?
This module is compatible with a wide range of GM trucks and vans. Please check the detailed fitment list on this page and ensure your vehicle’s original part number matches one of the provided cross-reference numbers (16263494, 16265035, 8162634940, etc.). Programming to your VIN provides the final layer of guaranteed compatibility.
Is this a brand new part?
This is a professionally prepared OEM component that has been thoroughly inspected, cleaned, and tested to meet or exceed original factory specifications. It is programmed with the latest software and is ready for a long service life in your vehicle.
What if I have questions during installation?
Our team of experienced automotive technicians is here to help. If you run into any issues or have questions, please don’t hesitate to contact us. We’re committed to ensuring your repair is a success.