Is Your GM Truck or SUV Running Rough?
If your late-90s Chevrolet Suburban, Tahoe, or GMC Yukon is experiencing puzzling issues like stalling, erratic shifting, a persistent check engine light, or even a no-start condition, the culprit is often a failing Powertrain Control Module (PCM). As the central computer for your engine and transmission, a faulty PCM can cause a wide range of frustrating problems that can be difficult to diagnose. This isn’t just an inconvenience; it affects your vehicle’s reliability, fuel economy, and overall performance.
The Direct-Fit, Programmed Solution
Restore your vehicle’s performance and reliability with this genuine, used OEM Powertrain Control Module. This isn’t just a generic part off a shelf; it is a direct replacement for part number 16250279 and its alternatives. The most crucial service we provide is programming: before this module ships, we flash it with the latest official GM software updates, specifically calibrated to your vehicle’s unique Vehicle Identification Number (VIN). This ensures seamless integration, proper function of all systems, and a straightforward installation process, getting you back on the road with confidence.
From the Diagnostic Bay
We had a 1999 Chevy K1500 in the shop that was driving the owner crazy. It had a random misfire code that would come and go, and it would occasionally stall at red lights. The owner had already replaced the spark plugs, wires, cap, and rotor, and even a couple of sensors, with no luck. After connecting our scanner and seeing some erratic data from the PCM, we suspected the main computer was the issue. Swapping in a VIN-programmed module like this one solved everything instantly. The truck ran smoothly, the codes were gone, and the owner was thrilled to have his reliable truck back. It’s a classic case of symptoms pointing to one thing, while the root cause lies in the vehicle’s electronic brain.
Common Symptoms of a Failing PCM
- ✔ Check Engine Light is on with various or no specific codes.
- ✔ Engine stalling or cutting out unexpectedly.
- ✔ Rough idling or poor engine performance.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Decreased fuel efficiency for no apparent reason.
- ✔ Failure to pass emissions testing.
Why Choose a VIN-Programmed 1998-1999 Suburban 1500 PCM?
Vehicles from this era, especially those with GM’s Passlock or VATS security systems, require a PCM that is correctly set up for the specific vehicle it’s going into. Our programming service handles the heavy lifting. By using your VIN, we ensure the software loaded onto this module matches your truck’s original factory specifications, including engine size, transmission type, and emissions equipment. This eliminates compatibility guesswork and prepares the module for the final security relearn procedure, which you can often perform yourself right in your driveway.
This module is a cost-effective and reliable alternative to expensive dealership parts. Sourced from salvaged vehicles and thoroughly inspected, it provides original factory quality and function. Simply provide your VIN after purchase, and we’ll ship a module that’s ready for installation.
Frequently Asked Questions
Do I need to do any programming myself?
No. We handle the main programming by flashing the module with your vehicle’s specific VIN data and the latest GM software updates before it ships. You may need to perform a simple security relearn procedure after installation, which typically involves a sequence of key turns and waiting periods. Instructions are widely available online for this process.
Is this a new part?
No, this is a high-quality, tested, and guaranteed functional used OEM part sourced from a salvaged vehicle. This ensures original factory fitment and performance without the high cost of a new module from the dealership.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (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.
Will this computer fit other vehicles besides a Suburban?
Yes, this PCM is compatible with a wide range of 1998-1999 GM trucks, vans, and SUVs, including the Tahoe, Yukon, C/K Pickups, Express, Savana, and more, as long as the part number (or one of the alternates like 09355699) matches. The VIN programming ensures it works correctly for your specific model.
What if I install it and still have problems?
While this module is tested and programmed to be a direct solution for a faulty PCM, it’s important to ensure your vehicle’s underlying issues have been correctly diagnosed. If problems persist, it could indicate other issues with sensors, wiring, or mechanical components. We recommend having the vehicle diagnosed by a qualified technician if you are unsure.