Is Your GM Truck or Van Running Rough?
If your 1998-1999 Chevrolet Suburban 2500, Tahoe, Express Van, or other compatible GM vehicle is suffering from mysterious performance issues, a faulty Powertrain Control Module (PCM) is a likely culprit. As the central computer for your engine and transmission, a failing PCM can cause a cascade of problems, from a simple check engine light to a frustrating no-start condition. This genuine, used OEM PCM is the reliable and cost-effective solution to get your vehicle running smoothly again.
The Plug-and-Play Solution: VIN Programmed for You
Don’t waste time and money at the dealership. We take the guesswork out of the repair by pre-programming this module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures that the computer has the latest GM software updates and communicates perfectly with your vehicle’s existing systems right out of the box. Simply provide your VIN after purchase, and we’ll handle the complex programming for you.
From the Diagnostic Bay
We had a ’99 Yukon in the shop that was driving the owner crazy. It would randomly stall at stoplights, but never threw a consistent code. We checked fuel pressure, ignition components, and sensors—all were fine. On a hunch, we monitored the PCM data stream and saw erratic readings from the crank sensor just before a stall, even though the sensor itself was new. We swapped in a VIN-programmed PCM like this one, and the problem was solved instantly. The internal processor on the old unit was failing under heat, a common issue for these modules after 20+ years of service.
Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various communication or sensor-related codes.
- ✔ Engine misfires, runs rough, or stalls unexpectedly.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle cranks but refuses to start (no-start condition).
- ✔ Failure to pass state emissions testing.
- ✔ Intermittent issues that seem to have no other logical cause.
Why Choose Our Pre-Programmed Suburban 2500 PCM?
Replacing your engine’s computer can seem daunting, but our service makes it simple. This unit is a direct-fit replacement for a wide range of GM trucks and vans from the 1998-1999 model years. It is a tested, reliable component sourced from a salvaged vehicle. By providing a part that is already flashed to your VIN, we eliminate the need for expensive scan tools or trips to a mechanic for post-installation programming. Please note that while the core programming is done, a security relearn procedure (such as for GM’s Passlock system) or a Crankshaft Variation (CASE) relearn may be required after installation. This can often be done without special tools, and procedures are widely available online.
Compatible Part Numbers:
This module is a direct replacement for service numbers 09355699, 16266645, 16250279, 16258815, and 09366810. Please verify your original part number to ensure compatibility.
Frequently Asked Questions
Do I need to program this PCM?
No. We program the PCM with the latest GM software using the VIN you provide before we ship it. This makes the installation process as simple as possible.
What is a CASE Relearn and will I need to do one?
A Crankshaft Variation (CASE) Relearn is a procedure that allows the new PCM to learn the specific characteristics of your engine’s crankshaft position sensor. It is often required after a PCM replacement to prevent a P1336 trouble code. This procedure typically requires a bi-directional scan tool.
Is this a new part?
No, this is a high-quality, tested, and guaranteed functional used OEM part sourced from a salvaged vehicle. This provides OEM reliability at a fraction of the cost of a new unit.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. You can typically find your VIN on the driver’s side of the dashboard (visible through the windshield) or on the driver’s side door jamb sticker.
Will this fix my transmission shifting problems?
The PCM controls both the engine and the transmission. If your shifting problems are electronic in nature (caused by faulty signals or processing), a new PCM can resolve them. It will not fix mechanical issues within the transmission itself.