Restore Peak Performance to Your GM Van or Truck
Is your 1998-1999 GMC Savana 2500 or other compatible GM vehicle suffering from perplexing issues like a persistent check engine light, rough idling, stalling, or poor fuel economy? The Powertrain Control Module (PCM), the central computer of your vehicle’s engine and transmission, is often the culprit. This isn’t just a replacement part; it’s a complete, ready-to-install solution. We provide a reliable, tested OEM PCM that is professionally programmed with the latest GM software updates specifically for your vehicle using your VIN. This critical step ensures seamless communication between all vehicle systems, restoring the performance and reliability you depend on.
From the Diagnostic Bay
We had a customer with a ’99 Chevy Suburban who was chasing a ghost. He had replaced the MAF sensor, O2 sensors, and even the fuel pump trying to solve an intermittent stalling and hard-start issue. No codes were pointing directly to the computer. After weeks of frustration, he brought it to us. We hooked up our diagnostic tools and noticed erratic data from multiple sensors, but the sensors themselves tested fine. This is a classic sign of a failing PCM. We installed a VIN-programmed module just like this one, and the truck fired up instantly and ran smoother than it had in years. He could have saved hundreds of dollars and countless hours by addressing the vehicle’s brain first.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) on the dashboard.
- ✔ Engine stalling or cutting out unexpectedly.
- ✔ Rough or erratic engine idle.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Failure to pass emissions testing.
Your Direct-Fit 1998-1999 Savana 2500 PCM Solution
Finding the right computer for these classic GM trucks and vans can be a challenge. This genuine, used OEM 1998-1999 Savana 2500 PCM has been carefully inspected and is guaranteed to be a perfect replacement. The key to our service is the VIN-specific programming. When you provide us with your Vehicle Identification Number, we flash the module with the exact factory software your vehicle was built with, plus any subsequent official updates from GM. This eliminates compatibility guesswork and the need for expensive programming at a dealership. Your vehicle will recognize the new module as its own, allowing for a straightforward installation process.
Why VIN Programming is Essential
A PCM from another vehicle, even the same model, won’t work correctly without being programmed. The software dictates critical parameters like fuel delivery, spark timing, transmission shift points, and anti-theft system operation. Our programming service tailors this module to your van’s specific engine, transmission, and options, ensuring a true plug-and-play experience. This is the most reliable and cost-effective way to get your vehicle back in top running condition.
Broad Compatibility
While this is a perfect fit for the 1998-1999 Savana 2500 PCM, this module, identified by service number 09355699, is also a direct replacement for a wide range of GM trucks, vans, and SUVs from that era. It is interchangeable with part numbers 16258815, 16266645, 9355699, 16250279, 09366810, and 9366810. Please review the detailed fitment list to confirm compatibility with your specific vehicle, including models like the Chevrolet Express, Suburban, Tahoe, C/K Pickups, and GMC Yukon.
Frequently Asked Questions
Why do I need to provide my VIN?
Your Vehicle Identification Number (VIN) allows us to load the exact, correct software from GM for your vehicle’s specific engine, transmission, and options. This ensures the PCM works perfectly upon installation without needing a trip to the dealer.
Is this a new part?
No, this is a high-quality, tested, and fully functional used OEM part sourced from a salvaged vehicle. This provides OEM reliability at a fraction of the cost of a new module.
Will I need to do anything after I install it?
In many cases, it is a simple plug-and-play installation. However, some GM vehicles of this era may require a security relearn procedure (also known as a CASE relearn) to sync the new PCM with your vehicle’s anti-theft system. This is a simple procedure that can typically be done without special tools.
Where is the PCM located on my Savana Van?
On the 1998-1999 Savana and Express vans, the PCM is typically located in the engine compartment, on the left-hand (driver’s) side, often near the rear of the engine bay.
How do I confirm this is the right part for my vehicle?
The best way is to match the part number from your existing module to one of the compatible numbers listed (e.g., 16258815, 09355699). You can also use the detailed fitment list provided to match your vehicle’s year, make, model, and engine size.