Is your truck or van leaving you stranded? A faulty Powertrain Control Module (PCM) can cause a cascade of frustrating issues, from a no-start condition to erratic engine behavior that makes your vehicle unreliable. This pre-programmed PCM is the definitive, hassle-free solution to restore your vehicle’s performance and get you back on the road with confidence. We take the guesswork out of the repair by flashing this computer with the latest GM software updates, specifically matched to your vehicle using your VIN.
Common Failure Symptoms & Your Direct Solution
If you’re experiencing any of the following, a failing engine computer is the likely culprit. This unit is designed to resolve these exact problems:
- Persistent Check Engine Light (CEL) that won’t clear
- Engine stalling, stumbling, or misfiring
- Complete no-start or intermittent starting issues
- Poor fuel economy and reduced engine power
- Harsh or erratic automatic transmission shifting
- Communication error codes with diagnostic scan tools
- Failure to pass emissions testing
Replacing your old module with this expertly programmed 1999 GMC Savana 2500 PCM is the most effective way to permanently fix these issues and restore your vehicle’s original dependability.
Features & Benefits
- âś” VIN-Programmed for You: We flash the module with your vehicle’s specific VIN, ensuring it works correctly right out of the box. No expensive trips to the dealer for programming.
- âś” Plug & Drive Installation: Once programmed, this unit is a direct-fit replacement, simplifying your installation process and minimizing vehicle downtime.
- âś” Updated GM Software: Your computer arrives with the newest factory software updates from General Motors, which can improve performance, fuel efficiency, and shifting logic over the original programming.
- âś” Cost-Effective Repair: Get a reliable, tested OEM part without the high cost of a brand-new unit from the dealership.
- âś” Broad Compatibility: This single unit, identified by part numbers 16266645 or 09355699, fits a wide range of popular 1998-1999 GM trucks, vans, and SUVs.
- âś” Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
For these late-90s GM vehicles, VIN programming isn’t just a suggestion—it’s essential. The PCM is the central hub that communicates with the engine, transmission, and the anti-theft system (VATS/Passlock). A non-programmed or incorrectly programmed module from a junkyard simply won’t work. It will trigger the security system and prevent your engine from starting. Our professional programming service ensures all systems communicate correctly, saving you the immense headache and cost of a vehicle that won’t run after the repair. This is the critical step that makes this a true plug-and-play solution.
Don’t let a bad computer keep your work truck or family SUV off the road. This programmed 1999 GMC Savana 2500 PCM is your ticket to a reliable and lasting repair. After purchase, simply provide us with your VIN, and we’ll handle the rest, shipping you a module that’s ready to get your vehicle running right again.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to program the PCM with the exact software and calibrations for your truck’s specific engine, transmission, and options. This step is crucial for ensuring proper function and avoiding compatibility issues.
Is any additional programming needed after I install it?
In most cases, no further programming is required. However, some GM vehicles of this era may require a simple, key-on/key-off security relearn procedure to sync the new PCM with your vehicle’s anti-theft system. This procedure can be done without any special tools and instructions are readily available online.
How do I know if my PCM is the problem?
Common signs of a failing PCM include a no-start condition where the engine cranks but won’t fire, unexplained stalling, multiple unrelated diagnostic trouble codes, and erratic behavior that isn’t caused by a mechanical failure. If you’ve checked sensors and wiring, the PCM is often the root cause.
Is this a used part?
Yes, this is a genuine, used OEM computer that has been carefully removed from a salvaged vehicle. It has been tested for functionality and is ready to be programmed for its next service life, offering a reliable and affordable alternative to a new part.
What if I order the wrong part?
We strongly recommend matching one of the part numbers listed (09355699, 16266645, etc.) from your original computer. If you are unsure, please contact us with your VIN before ordering, and our experts can help verify the correct fitment for your vehicle.