Get Your Truck Running Right Again
Is your truck or van suffering from frustrating issues like stalling, a persistent check engine light, or erratic shifting? A failing Powertrain Control Module (PCM) is often the culprit, leaving you with an unreliable vehicle and a major headache. This replacement PCM is the definitive solution, designed to restore your vehicle’s factory performance and dependability. We take the guesswork out of the repair by pre-programming this module specifically to your vehicle’s VIN with the latest GM software updates. This ensures it works correctly right out of the box, getting you back on the road quickly and confidently.
Common Symptoms of a Failing PCM & Your Direct Solution
If you’re experiencing any of the following, a faulty PCM is the likely cause. This module is the direct fix for:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, or P0606
- Rough or inconsistent engine idle
- Poor fuel economy
- Harsh or incorrect transmission shifting
- Engine stalling or cutting out unexpectedly
- Complete no-start condition
By installing our precisely programmed 1999-2000 GMC Sierra 1500 PCM 16263494, you are not just replacing a part; you are restoring the core of your vehicle’s operational integrity.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: No need for expensive trips to the dealership for programming. This module arrives ready for installation, saving you time and money.
- ✔ Loaded with Latest GM Software: We flash the unit with the most current GM updates, which can improve fuel efficiency, transmission shifting, and overall engine performance beyond its original state.
- ✔ Guaranteed Fit and Function: As a direct replacement for part number 16263494 and other compatible numbers, it ensures seamless integration with your vehicle’s systems.
- ✔ Rigorously Inspected: Each module undergoes a thorough inspection and testing process to guarantee it meets strict quality standards for long-term reliability.
- ✔ Broad GM Compatibility: While perfect for the 1999-2000 GMC Sierra 1500 PCM 16263494, this unit also fits a wide range of Chevrolet, GMC, and other GM trucks, vans, and SUVs from that era.
Expert Mechanic’s Insight
Many people are tempted to grab a used computer from a salvage yard to save a few dollars, but that’s a huge gamble. Those units aren’t programmed for your specific VIN and will not work due to the factory Vehicle Anti-Theft System (VATS/Passlock). Our service eliminates that risk entirely. We handle the complex programming so you receive a component that communicates perfectly with your truck’s existing systems. While you may need to perform a simple 10-30 minute security relearn procedure after installation (instructions are widely available online), you avoid the high cost and hassle of dealer-only tools and programming.
Don’t let a faulty computer keep your hard-working vehicle off the road. This is the most effective and straightforward way to solve complex electronic issues and restore the dependable performance you rely on. By providing us with your VIN upon purchase, you ensure a perfect match and a hassle-free repair. This is the correct solution for your 1999-2000 GMC Sierra 1500 PCM 16263494.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it. It arrives ready to be installed, saving you a costly trip to the dealership.
How do I provide my vehicle’s VIN?
After you complete your purchase, you can add your VIN to the order notes or send it to us in a message. We will not ship the module until we have your VIN to ensure proper programming.
Is the installation difficult? Is it truly ‘plug and play’?
The physical installation is very straightforward. You simply disconnect the battery, unplug the old module, and plug this one in. In many cases, you will need to perform a simple security relearn procedure afterwards, which involves a sequence of key turns. This procedure does not require any special tools and can be done in your driveway.
My original part number is slightly different. Will this still work?
This module is a direct replacement for several part numbers, including 16263494, 16265035, and 8162634940. Please check the detailed fitment list on this page. If you’re still unsure, contact us with your VIN and original part number, and we’ll confirm compatibility for you.
What causes a PCM to fail in the first place?
PCM failure can be caused by a number of factors, including age, heat and vibration from the engine bay, electrical shorts from other failing components, or water damage. It’s a complex electronic part that can wear out over time, just like any other component.