Restore Peak Performance to Your GM Truck or Van
Is your 1998 GMC Savana 3500, or another compatible GM vehicle, suffering from frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or a no-start condition? These are classic symptoms of a failing Powertrain Control Module (PCM), the central computer that manages your vehicle’s engine and transmission. Don’t let a faulty computer keep your reliable workhorse off the road. This direct-fit replacement PCM is the definitive solution to restore your vehicle’s original performance, efficiency, and dependability.
The Brain of Your Vehicle, Programmed for You
The PCM is arguably one of the most critical components in your vehicle. It processes information from dozens of sensors to precisely control fuel injection, ignition timing, transmission shift points, and emissions systems. When it fails, the entire powertrain can be affected, leading to a cascade of problems. Our service simplifies the repair process. We take a high-quality replacement module and flash it with the latest official GM software updates, specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This ensures perfect compatibility with your engine, transmission, and factory options, eliminating the guesswork and the need for expensive dealership programming.
From the Diagnostic Bay
We had a 1999 GMC Yukon come in with what the owner was sure was a failing transmission. It was shifting hard between first and second gear and occasionally seemed to get stuck in gear. He had already gotten a quote for a costly transmission rebuild. During our diagnostic, we noticed the command signals from the PCM to the transmission shift solenoids were erratic. Instead of a mechanical failure, the computer itself was the culprit. We installed a VIN-programmed PCM, performed the necessary relearn procedure, and the Yukon shifted as smoothly as it did the day it left the factory. It saved the customer thousands of dollars and solved a problem that seemed purely mechanical but was actually electronic.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or misfiring.
- ✔ Harsh or unpredictable automatic transmission shifting.
- ✔ A significant drop in fuel mileage.
- ✔ The vehicle cranks but refuses to start.
- ✔ Failure to pass state emissions testing.
- ✔ Communication errors with diagnostic scan tools.
A Reliable Solution with a 1998 Savana 3500 PCM
Replacing your vehicle’s computer can seem daunting, but we make it straightforward. This module is a direct replacement for part numbers 09366810, 16250279, and 09355699, covering a wide range of popular GM trucks, vans, and SUVs from the late 1990s. By providing us with your VIN during checkout, you ensure that the module you receive is ready for installation. While the physical swap is simple, please be aware that a security relearn procedure (often called a CASE relearn or anti-theft relearn) is typically required after installation to sync the new module with your vehicle’s ignition system. This is a standard procedure that can often be done without special tools, and instructions are widely available.
Investing in a properly programmed 1998 Savana 3500 PCM is not just about fixing a single problem; it’s about restoring the complex harmony between your engine and transmission. Get your vehicle running right again with a reliable, pre-programmed control module built to last.
Frequently Asked Questions
Why do you need my vehicle’s VIN?
Your VIN (Vehicle Identification Number) allows us to program the PCM with the exact software and calibrations for your vehicle’s specific engine, transmission, and factory-installed options. This ensures seamless integration and proper function right out of the box.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the electrical connectors. However, after installation, a security relearn procedure is almost always necessary to allow the vehicle to start and run. We recommend reviewing the specific procedure for your model.
What happens if I don’t perform the security relearn?
If the security relearn is not completed, the vehicle’s anti-theft system will not recognize the new PCM, and it will prevent the engine from starting as a security measure.
How can I confirm this is the right part for my vehicle?
The best way is to match the part number from your original module to one of the compatible numbers listed: 09366810, 16250279, or 09355699. You can also use the detailed fitment list on this page to confirm compatibility with your make, model, and year.
Will this fix my check engine light?
If the check engine light and associated codes are being caused by a faulty PCM, then yes, this replacement module should resolve the issue. It’s always best to have the codes professionally diagnosed to ensure the PCM is the root cause before ordering.