Get Your Workhorse Running Right Again
Is your Savana van or GM truck suddenly running rough, refusing to start, or throwing confusing check engine lights? A failing Powertrain Control Module (PCM) can bring your work to a halt, causing frustrating issues like poor fuel economy, erratic shifting, and even a complete no-start condition. This isn’t just an inconvenience; it’s costing you time and money. Get back on the road with confidence with this reliable, fully programmed replacement PCM.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely culprit. This unit is the definitive solution for:
- Intermittent or constant Check Engine Light (CEL)
- Engine stalling, sputtering, or misfiring
- Harsh or unpredictable automatic transmission shifting
- Failure to communicate with diagnostic scan tools
- Reduced power and poor fuel mileage
- Vehicle won’t start, even with a good battery and starter
Instead of paying steep dealership prices for a new module and programming fees, this is your direct-fit, affordable solution. We take a tested, genuine GM computer and flash it with the latest official software updates, specifically matched to your vehicle’s VIN. This ensures your 1999 Savana 3500 PCM performs exactly as the factory intended.
Features & Tangible Benefits
- ✔ VIN-Specific Programming Included: We flash the unit with your vehicle’s exact VIN before shipping. This eliminates the need for expensive dealer tools or programming, making for a true plug-and-play installation.
- ✔ Loaded with Latest GM Updates: Your computer arrives with the most current software from General Motors, often correcting factory bugs and improving engine and transmission performance.
- ✔ Genuine OEM Reliability: Sourced from a salvaged vehicle, this is an original GM part, not a questionable aftermarket clone. You get the quality, fit, and durability the manufacturer intended.
- ✔ Broad Model Compatibility: While perfect for the 1999 Savana 3500 PCM, this unit fits a wide range of GM trucks, vans, and SUVs from 1998-1999. See our detailed fitment list to confirm compatibility.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Mechanic’s Insight: The Post-Installation Relearn
Here’s a pro tip to ensure a smooth installation. After you install your new PCM, your vehicle will likely require a simple “Security Relearn” procedure to recognize the new computer. This typically involves cycling the key in the ignition a few times in a specific sequence (e.g., turn key to ‘ON’ for 10 minutes, then ‘OFF’ for 10 seconds, and repeat 3 times). This procedure syncs the PCM with your vehicle’s anti-theft system. On some models, a Crankshaft Variation Relearn (CASE Relearn) may also be needed, which can be done with many professional-grade scan tools. Getting this right is key to a successful repair.
Frequently Asked Questions
How do I provide my VIN for programming?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive this information, as the programming is essential for the computer to work in your vehicle.
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 inspected and tested before being programmed and shipped to you.
Do I need to do anything after I install it?
Yes. In most cases, you will need to perform a Security Relearn procedure so your vehicle’s anti-theft system accepts the new computer. This is a simple process you can do yourself without any special tools. Instructions are widely available online for your specific model.
My old computer’s part number isn’t an exact match. Will this work?
Yes, this computer is compatible with multiple part numbers, including 09355699, 16266645, 16250279, and more as listed. As long as your vehicle is on the fitment list, our VIN-specific programming for your 1999 Savana 3500 PCM ensures it will function correctly.
What does ‘flashed’ or ‘programmed’ mean?
This means we load the computer with the specific software your vehicle needs to operate. This includes information about the engine size, transmission type, and other options. Without this programming, the computer will not work.