Get Your GM Truck Back on the Road, Fast.
Is your trusty 1998-1999 GMC Yukon, Tahoe, or Chevy truck giving you headaches? If you’re dealing with a no-start condition, erratic engine behavior, or a persistent check engine light that points to the computer, you’ve found the definitive solution. A failing Powertrain Control Module (PCM) can bring your entire vehicle to a halt, disrupting your work and your life. This isn’t just a replacement part; it’s a fully programmed, plug-and-play fix designed to restore the factory performance and reliability you depend on.
Common Symptoms of a Failing GM ECM & Your Solution
A faulty engine computer can manifest in numerous frustrating ways. You might be experiencing one or more of the following issues:
- Complete No-Start: The engine cranks but will not fire up.
- Stalling or Misfiring: The engine randomly stalls, runs rough, or misfires, especially under load.
- Harsh or Incorrect Shifting: The transmission shifts erratically, slams into gear, or won’t shift at all.
- Check Engine Light (CEL): You may have codes related to internal processor failure, sensor circuits, or communication errors.
- Poor Fuel Economy: A failing PCM can’t properly manage the engine, leading to a noticeable drop in MPG.
This Programmed 16250279 PCM is the answer. We take a genuine, tested GM module and flash it with the latest official software update specifically for your vehicle’s Vehicle Identification Number (VIN). This critical step ensures all parameters for your engine, transmission, and options are correct, eliminating the guesswork and the need for an expensive trip to the dealer.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: We flash the module with your specific VIN before shipping, making it a true plug-and-play part. No extra steps needed.
- ✔ Restored Drivability: By installing a correctly functioning computer with the latest software, you’ll restore smooth engine operation, proper shifting, and reliable starting.
- ✔ Cost-Effective Repair: Get a reliable, pre-programmed computer without the high cost of a brand-new unit from a dealership.
- ✔ Broad Compatibility: This module is a direct replacement for multiple part numbers, including 09355699, 16266645, and more, fitting a wide range of GM trucks, vans, and SUVs.
- ✔ One-Year Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: Why VIN Programming is Non-Negotiable
In this era of GM vehicles (often called the “Black Box” Vortec era), the PCM is more than just an engine controller; it’s the central brain that’s tied directly to your vehicle’s anti-theft system (VATS/Passlock). You cannot simply take a computer from another truck and expect it to work. The VIN programming process does two crucial things: it loads the correct fuel and transmission tables for your specific engine and equipment, and it allows the PCM to communicate with the other modules in your vehicle. Skipping this step will result in a no-start condition every time. Our service handles this complex process for you, ensuring the Programmed 16250279 PCM you receive is ready for immediate installation.
Frequently Asked Questions
Do I need to do any programming after I receive this?
No. This PCM comes fully programmed to the VIN you provide. In most cases, it is a direct plug-and-play installation. Some vehicles may require a simple security relearn procedure, which takes about 30 minutes and can be done without any special tools. Instructions are readily available online for this process.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship your part until we receive the VIN.
Is this a new part?
No, this is a high-quality, used OEM computer that has been sourced from a salvaged vehicle. Each unit is thoroughly inspected and tested before being programmed and shipped to ensure full functionality.
How can I be sure my old computer is the problem?
While the symptoms listed are common for a failing PCM, it’s always best to have a proper diagnosis performed. Check all power and ground connections to the computer and rule out other potential causes like faulty sensors or wiring issues. A PCM is often the cause when multiple, unrelated error codes appear simultaneously.
Will this fix my transmission shifting problems?
In many cases, yes. The PCM (or ECM) controls both the engine and the transmission. If the electronic portion of the transmission is sound, a faulty computer is a very common cause of shifting issues like harsh engagement or incorrect shift points. This Programmed 16250279 PCM will restore the correct shift strategy as designed by GM.