Is Your 1998-1999 GM Truck or SUV Running Rough?
If your GMC Yukon, Chevy Tahoe, or other late-90s GM vehicle is experiencing frustrating issues like a persistent check engine light, poor fuel economy, erratic shifting, or even a no-start condition, the root cause is often a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, a faulty PCM can create a cascade of problems that are difficult to diagnose. Don’t let a bad module keep you off the road. This direct-fit replacement PCM, part number 16250279, is the reliable solution to restore your vehicle’s performance and dependability.
Symptoms of a Failing GM PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Rough or unstable engine idle.
- ✔ Engine stalling or cutting out unexpectedly.
- ✔ Poor acceleration and overall lack of power.
- ✔ Decreased fuel efficiency.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Failure to pass emissions testing.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
The Plug-and-Play Solution for Your 1998-1999 Yukon PCM
Getting your truck back to factory-spec performance shouldn’t require expensive trips to the dealership. We make the process simple. When you order this module, you provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). Our technicians will then program the PCM with the latest, most stable software updates directly from GM. This ensures that the module is perfectly matched to your vehicle’s specific configuration, including engine size, transmission type, and emissions equipment. The result is a true plug-and-play component that restores the precise calculations your engine needs to run efficiently and reliably. This professional programming service is included with your purchase, saving you time and money.
Guaranteed Compatibility
This module is a direct replacement for several original equipment part numbers, ensuring a perfect fit and function. It is compatible with the following part numbers:
- 16250279
- 09366810
- 09355699
It is designed to fit a wide range of 1998-1999 General Motors trucks, vans, and SUVs, including the Chevrolet Silverado, GMC Sierra, Tahoe, Suburban, Escalade, Astro, Safari, and more. Please verify your original part number or consult the detailed fitment list to confirm this is the correct part for your vehicle.
Frequently Asked Questions
What does the PCM actually do on my vehicle?
The Powertrain Control Module (PCM) is the master computer for your vehicle’s most critical systems. It reads data from dozens of sensors to control fuel injection, ignition timing, transmission shift points, and emissions systems to ensure optimal performance, fuel economy, and low emissions.
Do I need to program this 1998-1999 Yukon PCM?
No, you do not. We handle all the programming for you before shipment. Simply provide your vehicle’s VIN during or after checkout, and we will flash the module with the correct GM software for your specific vehicle. It will arrive ready to install.
Is the installation process difficult?
For most of these GM trucks and vans, the PCM is located in the engine bay and is relatively easy to access. The physical installation involves disconnecting the battery, unplugging the electrical harnesses from the old module, unbolting it, and then installing the new one in the reverse order. In most cases, a security relearn procedure (often called a CASE relearn) may be required, which can be done without special tools and instructions can be easily found online.
Where can I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on a metal plate on the driver’s side of the dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your vehicle’s registration and insurance documents.
Will this module fix my check engine light?
If the check engine light is on due to an internal failure of the original PCM, then yes, this replacement module will solve the problem. However, if the light is on because of a faulty sensor or other mechanical issue, that separate problem will still need to be addressed. A new PCM will not fix a bad oxygen sensor or a vacuum leak, for example.