Restore Peak Performance to Your GM Truck or Van
Is your 1998-1999 GMC Yukon, Chevy truck, or van suffering from frustrating issues like a persistent check engine light, rough idling, stalling, or a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM). This vital component is the brain of your vehicle’s engine, and when it malfunctions, it can cause a wide range of performance problems. This listing offers a reliable, tested, and pre-programmed replacement PCM, service number 16250279, to get your vehicle running smoothly again.
From the Diagnostic Bay
We had a ’99 Suburban come in that the owner had thrown parts at for weeks. It would run fine for 20 minutes, then suddenly stall and refuse to restart for an hour. He’d replaced the fuel pump, ignition coil, and crank sensor. After connecting our scanner, we noticed the PCM would randomly stop communicating right before the stall. It was a classic case of thermal failure inside the computer. We installed one of these VIN-programmed units, performed the security relearn, and the truck ran perfectly. It’s a reminder that sometimes the root cause is the computer itself, not just the sensors it’s reading.
Direct Solution for Your 1998-1999 Yukon PCM
Don’t let a faulty engine computer keep you off the road. We make the replacement process straightforward. This is a genuine used OEM module that has been carefully inspected and tested. More importantly, it will be professionally programmed with the latest GM-certified software updates specifically for your vehicle’s VIN. This ensures correct engine and transmission parameters, proper emissions control, and seamless integration with your vehicle’s systems. Simply provide your VIN at checkout, and we handle the complex programming for you.
Common Symptoms of a Failing PCM
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling or shutting off unexpectedly while driving.
- ✔ Rough or erratic idling.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Poor fuel economy and noticeable loss of power.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
Guaranteed Compatibility and Fitment
This PCM, identified by service number 16250279, is a direct replacement for several part numbers, including 09355699, 16266645, 9355699, 16258815, 09366810, and 9366810. It is compatible with a wide array of General Motors vehicles from the 1998-1999 model years, including the Chevrolet Tahoe, Suburban, Express Van, GMC Savana, Cadillac Escalade, and many more. Please verify your original part number or consult the detailed fitment list to ensure this is the correct component for your vehicle.
Frequently Asked Questions
Why do I need to provide my Vehicle Identification Number (VIN)?
Your vehicle’s VIN is essential for us to load the correct, vehicle-specific software onto the PCM. This programming ensures the engine, transmission, and all related systems function exactly as the manufacturer intended for your specific make, model, and options.
Is this a plug-and-play part?
Almost. Because we pre-program the module to your VIN, the main engine and transmission functions are ready to go. However, on most of these GM vehicles, you will need to perform a simple security relearn procedure (also known as a CASE relearn or Passlock relearn) after installation. This syncs the new PCM with your vehicle’s anti-theft system and can typically be done without special tools. Instructions are widely available online or in service manuals.
Is this a new part?
No, this is a high-quality, used OEM part sourced from a salvaged vehicle. Each unit is thoroughly inspected and tested to ensure it is fully functional before being programmed and shipped.
How do I find my original part number?
Your vehicle’s original PCM is typically located in the engine bay, often on the driver’s side fender or firewall. The part number is printed on a sticker on the module’s case. It will usually be an 8-digit number, like 16250279 or 09355699.
Will this fix my check engine light?
If the check engine light and performance issues are caused by a faulty PCM, then yes, this replacement part is the correct solution. However, it’s always recommended to have a proper diagnosis performed to rule out other potential issues like failed sensors or wiring problems.