Restore Peak Performance to Your GM Truck or Van
Is your 1998-1999 GMC Savana, Chevrolet Express, Tahoe, or Suburban running poorly? Experiencing a persistent check engine light, erratic shifting, or a frustrating no-start condition? The Powertrain Control Module (PCM) is the central computer responsible for managing your vehicle’s engine and transmission. When it fails, it can cause a wide array of performance problems that can be difficult to diagnose. This replacement PCM, part number 16258815, is the reliable solution to get your vehicle back on the road and running smoothly.
From the Diagnostic Bay
I once had a ’99 Suburban in the shop with an intermittent no-start that was driving the owner crazy. It would start fine for a week, then refuse to crank for two days. We checked all the usual suspects—battery, starter, grounds, ignition switch—and everything tested fine. After hours of tracing wires, we swapped in a known-good PCM. The truck fired up instantly and never had the problem again. These older PCMs can develop internal connection issues that are temperature-sensitive, leading to some of the most frustrating ghost problems a technician can face. A pre-programmed replacement is often the fastest and most effective repair.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various codes
- ✔ Engine stalling, stumbling, or misfiring
- ✔ Harsh or erratic automatic transmission shifting
- ✔ Poor fuel economy and loss of power
- ✔ Complete no-start or intermittent starting issues
- ✔ Failure to communicate with a diagnostic scan tool
The Right Solution: A VIN-Programmed 1998-1999 Savana PCM
Don’t settle for a generic, unprogrammed module that will require an expensive trip to the dealership. We take the guesswork and hassle out of the repair. When you order this PCM, we will flash it with the latest official GM software updates specifically for your vehicle’s Vehicle Identification Number (VIN). This ensures that all parameters for the engine, transmission, and emissions systems are perfectly matched to your vehicle’s original specifications. This is not just a replacement; it’s a fully prepared component ready for installation.
This quality used module has been carefully sourced from a salvaged vehicle and tested for functionality. It is a direct replacement for a wide range of popular GM trucks and vans from the 1998-1999 model years, including the Chevrolet Tahoe, GMC Yukon, Cadillac Escalade, and various pickup models. Please verify your original part number or service ID (often 09355699) to ensure compatibility. By providing your VIN, you guarantee that the 1998-1999 Savana PCM you receive is correctly configured for your specific application.
Frequently Asked Questions
Do I need to program this computer?
No. This PCM comes pre-programmed to your vehicle’s specific VIN. You must provide us with your VIN after purchase so we can flash the module before shipping it to you.
Is any special procedure required after installation?
Yes. After installation, you will likely need to perform a security relearn procedure, also known as a CASE (Crankshaft Angle Sensor Error) relearn. This can often be done without special tools and instructions are widely available, or it can be performed by any qualified mechanic.
Where can I find my vehicle’s VIN?
Your 17-digit VIN can be found on your vehicle’s registration, insurance card, or on a metal plate on the driver’s side of the dashboard, visible through the windshield.
Is this a new part?
No, this is a reliable, tested computer that was sourced from a salvaged vehicle. It offers a cost-effective alternative to a brand new module from the dealer.
How do I know if this PCM will fit my vehicle?
This module replaces several part numbers, including 16258815 and 09355699. Please review the detailed fitment list on this page. The most important step is providing your VIN to ensure we program it correctly for your exact make, model, and options.