Get Your Workhorse Back on the Road
Is your 1998-1999 GMC Savana 3500, or another compatible GM truck, suffering from frustrating engine problems? A faulty Powertrain Control Module (PCM) can bring your vehicle to a standstill, causing everything from a no-start condition to erratic performance and a persistent check engine light. This isn’t just an inconvenience; it’s downtime that costs you time and money. This fully programmed PCM is the straightforward, reliable solution to get your truck running properly again.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing engine computer is the likely culprit:
- Engine cranks but refuses to start.
- Severe rough idling or stalling.
- Poor fuel economy and loss of power.
- Harsh or incorrect transmission shifting.
- Check Engine Light with communication-related Diagnostic Trouble Codes (DTCs).
- Intermittent electrical problems that seem to have no other cause.
This unit directly addresses these failures. We take a reliable, used OEM computer and flash it with the latest official GM software updates, specifically matched to your vehicle’s unique VIN. This process ensures that your engine and transmission operate exactly as the manufacturer intended, restoring the performance and dependability you rely on. Stop chasing symptoms and fix the root cause with this ready-to-install Programmed 1998-1999 Savana 3500 PCM.
Features & Benefits
- ✔ VIN-Specific Programming: We flash the computer with your vehicle’s exact VIN, ensuring perfect compatibility with its specific options and systems.
- ✔ Plug-and-Play Installation: Arrives ready to be installed. In most cases, you will only need to perform a simple security relearn procedure, which can be done without special tools.
- ✔ Updated GM Software: Your module comes loaded with the newest software from General Motors, correcting common factory bugs and improving performance.
- ✔ Cost-Effective Solution: Get a fully functional, programmed computer for a fraction of the cost of a new unit from a dealership, without sacrificing quality.
- ✔ Restored Drivability: Solves common issues like stalling, rough idle, and poor shifting, making your truck reliable once again.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of the VIN
On these late ’90s GM trucks and vans, the PCM is the central hub for the entire vehicle. It doesn’t just manage the engine; it communicates with the transmission, the anti-lock brakes, and the security system (VATS/Passlock). Simply swapping in a computer from another vehicle will almost always result in a no-start condition due to a security mismatch. By programming your specific VIN to this module before we ship, we ensure all those systems can communicate correctly from the moment you install it. This is the critical step that separates a quick fix from a week of headaches.
This Programmed 1998-1999 Savana 3500 PCM is your direct path to resolving complex engine management issues. It is a tested, reliable component sourced from a salvaged vehicle, providing OEM durability. Get your truck or van back in service with confidence.
Complete Fitment Information
This module is a direct replacement for part numbers 09355699, 16266645, 16250279, 16258815, 09366810, and many others. It fits a wide range of 1998-1999 GM trucks, vans, and SUVs. Please verify your original part number or consult the detailed fitment list provided to ensure compatibility.
Frequently Asked Questions
Do I need to send you my old computer?
No, there is no core charge or need to send us your original unit. This is a direct purchase. You will, however, need to provide us with your vehicle’s 17-digit VIN after placing your order so we can program the module correctly.
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 then programmed with the latest GM software for your specific vehicle.
Will I need to do anything after installing it?
After installation, you will likely need to perform a security relearn procedure (often called a VATS or Passlock relearn). This procedure syncs the new computer to your vehicle’s anti-theft system and can typically be done in your driveway in about 30 minutes without any special tools. We can provide instructions for this simple process.
How do I provide my VIN?
After you complete your purchase, you can send us a message with your 17-digit VIN. We cannot ship your order until we receive this information, as the programming is essential for the part to function in your vehicle.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM or a software-related issue that the latest updates correct, then yes, this will resolve it. However, if the light is on due to a separate failed sensor or mechanical issue (like a bad O2 sensor or vacuum leak), you will still need to repair that underlying problem.
Does this fit vehicles other than the Savana 3500?
Yes. This Programmed 1998-1999 Savana 3500 PCM also fits a wide variety of GM vehicles from that era that use the same service number, including Chevrolet Express vans, Suburban, Tahoe, and various pickups. Please check the detailed compatibility list on this page to confirm it fits your specific model.